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Researchers have found that when very overweight people, who tend to h

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Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolism generally remain unchanged. They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level. Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.

The conclusion of the argument above depends on which of the following assumptions?

(A) Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.

(B) The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight.

(C) The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual.

(D) Researchers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents.

(E) Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it.
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New post 10 Apr 2005, 07:59
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Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolism generally remain unchanged. They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level. Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.

The conclusion of the argument above depends on which of the following assumptions?

A: Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.

YES. We know from the question that the metabolism of these very overweight people remains unchanged despite their weight loss. As such, in order to maintain their lower weight, they will have to consume fewer calories than people whose normal weight is at that level (and whose metabolisms are faster). If these newly thinner very overweight people maintain the same calorie count as their normal weight counterparts, they will gain weight. The fact that few of them do means that they will regain weight until their body size matches their metabolic rate.

B: The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight.

Irrelevant.

C: The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual.

This contradicts the passage. The passage tells us that very overweight people tend to have slower metabolic rates. Slower metabolic rates means that they will burn fewer calories per day. This rate is unrelated to the amount of calories consumed and relies instead on the weight of the individual (of course, this is a bit tricky, since very overweight people's metabolic rates don't change a lot when they lose weight through dieting... sigh).

D: Reseachers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents.

Irrelevant.

E: Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it.

Irrelevant.

I'd go with A because...

We know from the question that when very overweight people lose weight by dieting alone, their metabolism remains the same. That means that they cannot
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 14 Sep 2005, 13:10
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Go with A

Conclusion - new thin ppl will gain it back...

Assumption..they keep it eating a lot.

jinino wrote:
Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily thourgh dieting, their metabolisms, generally remain unchanged. The will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level. Such newly thin person will, therefore, ultimately regain weight until their body size again matches their metabolic rate.

The conclusion of the argument above depends on which of the following assumptions?

a) Relatively few overweight people who have dieted down to a new weight tend to continue to consume substatially fewer calories than do people whose normal weight is at that level.

b) The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight.

c) The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight individuals can be accelerated by means of chemical agents.

d) Researchers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents.

e) Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it.

Pls share us your answer and explanation. Thanks.
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 15 Sep 2005, 11:32
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The OA is A.

Here is the official explanation:

If, compared with people who have not been overweight, newly thin people burned fewer calories but also generally consumed fewer calories, one could not reliably conclude that the newly think people would regain weight. Therefore, the conclusion assumes that the newly thin do not generally consume fewer calories, making choice A the best answer.

The conclusion does not rely on differences in the variability of the metabolism (choice B), just on differences in the rate of metabolism, nor does it rely on the relative significance of different factors in determining how many calories a pwerson burns in a day (choice C). Neither does the conclusion assume anything about whether accelerators for the metabolism have been discovered (choice D), or about why some people have difficulty gaining weight (choice E).
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 27 Sep 2007, 12:50
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lnaik wrote:
18. Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolisms generally remain unchanged. They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level. Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.
The conclusion of the argument above depends on which of the following assumptions?
(A) Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.
(B) The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight.
(C) The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual.
(D) Researchers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents.
(E) Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it.


I say A b/c if this were true then overweight people would not regain the weight. This eliminates that possibility and fixes a flaw in the conclusion.
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 08 Jul 2008, 10:42
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I get A.

Premise: Overweight people who lose weight from dieting keep the same metabolism
Premise: They will burn less calories at the new lower weight than people who are normally at that weight.
---------------------------------------------------------------------------------------------------------
Conclusion: These people will regain weight until their body size matches their unchanged metabolism.

In order to reach that conclusion there is one premise (assumption) that we need. If the people are who lose weight by dieting will eventually regain weight than we HAVE to assume that they will stop dieting. Because if they continue to consume the same calories that they did to lose weight then they will not gain any of it back.
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 06 Dec 2010, 13:35
Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolisms generally remain unchanged. They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level. Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.
The conclusion of the argument above depends on which of the following assumptions?
(A) Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.
(B) The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight.
(C) The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual.
(D) Researchers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents.
(E) Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it.

Can some explain how to tackle assumption efficiently...thanks
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 07 Dec 2010, 04:56
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ajit257 wrote:
Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolisms generally remain unchanged. They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level. Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.

The conclusion of the argument above depends on which of the following assumptions?


Conclusion - Newly thin people regain weight.

Possible assumptions - Newly thin people start eating more. or
The metabolism of newly thin people further slows down thereby not burning calories,leading to increased weight.




(A) Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level. - Hold

(B) The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight. - Para is Talking about overweight people. Out of scope.

(C) The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual. - Out of scope.

(D) Researchers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents. - Out of scope.

(E) Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it. - Hold

Can some explain how to tackle assumption efficiently...thanks


Now between A and E use negation and see its effect of conclusion.Negation should undermine the conclusion.

E Not Because of the constancy of their metabolic rates, people who are at their usual weight normally do not have as much difficulty gaining weight as they do losing it. - Dosen't effect the conclusion at all.

A No very overweight people who have dieted down to a new weight tended to continue to consume substantially more calories than do people whose weight is at that level." - If this is true then how Newly thin people regained weight ? Hence this undermines the conclusion.

Hence A prevails.
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New post 07 Dec 2010, 17:11
thanks Amit ...I realized my mistake that i am overlooking the fact that assumtion is closely tied to conclusion ...awesome explanation.
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 07 Dec 2010, 20:25
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ajit257 wrote:
thanks Amit ...I realized my mistake that i am overlooking the fact that assumtion is closely tied to conclusion ...awesome explanation.


Amit has pretty much covered all the ground. Let me just add here that an assumption is a missing premise that is necessary for the conclusion to be true. The assumption has to be true for the conclusion to be true. Hence if you are lost between 2-3 choices, negate each choice. Once you negate an option, if your conclusion can still be true, it means the option is not an assumption. It is a very useful trick.
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 11 Aug 2012, 12:26
(A) Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level. Tell us that Formerly overweight people will consume more calories and burn less due to lower metabolic rate. As a result they will again gain weight.
(B) The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight. Argument is not concerned with this category. So B is out of Scope
(C) The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual. Out of scope
(D) Researchers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents. Tricky choice but it has no bearing on the argument. If this option tells that artificially metabolism rate can not be accelerated, then it would have been a possible answer choice.
(E) Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it. Out of scope. We are not concerned abt this group.

Answer: A
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 06 Nov 2012, 10:25
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Here is a reason why (C) does not work.

(C) The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual.

Ask ourselves...does knowing the amount of calories burned in a day affect our argument that these dieters will actually REGAIN weight? We already know that dieters' calorie burn is LOWER than that of normal people for a given weight. If weight gain is determined by calorie INTAKE minus calorie burned, then the missing part to this equation is actually calorie INTAKE (or food eaten)...which is what (A) already addressed. Does (C) address calorie INTAKE?

Is (C) something the argument DEPENDS on? This is the "A vs Not A" Framework.

Does the following work:
A case)Amount of calories burned is DETERMINED by amount consumed (rather than individual's weight) => dieters will REGAIN weight
"Not A" case) Amount of calories burned is NOT DETERMINED by amount consumed (instead, determined by individual's weight) => dieters will NOT REGAIN weight

Well, in the opposite case which is where calories burned is determined by individual's weight...then the calorie burns will be equal between avg person and the dieter because now the dieter has lost weight and become the same weight as the average person. So the amount of calories burned will equal. Thus, dieteres will NOT REGAIN weight. However, this conflicts with information in the passage...that since dieters' natural metabolism is lower, the calorie burn is LOWER than the average person. Thus conflicting information. Dieters' calorie burn cannot be LOWER than the average person AND the SAME.

Then in the "A" case, calorie burn is determined by amount consumed. Well, the dieters consume less than the average person. What does that mean for calorie burn? We know consumption is LINKED to calorie burn, but we don't know the direction. Is it dieters consume less so then calorie burn is HIGHER? or is it that the calorie burn is LOWER?

So you can see, (C) has a number of problems when the "A vs Not A" framework is applied.
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 20 Dec 2012, 00:18
skamal7 wrote:
Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolisms generally remain unchanged. They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level. Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.

The conclusion of the argument above depends on which of the following assumptions?

(A) Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.

(B) The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight.

(C) The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual.

(D) Researchers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents.

(E) Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it.

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Conclusion: Newly thin persons will ultimately regain weight until their body size again matches their metabolic rate.

This is a find assumption question. The best way to approach it is to negate the assumption to see if the conclusion is negated or not.

(A) Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.

NOT (A) Almost all very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.

If that be the case, then the newly thin people, who fewer calories will not gain weight even if their metabolism is low. This negates the conclusion. Hence this is the correct choice.

(B) The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight.

NOT (B) The metabolisms of people who are usually not overweight are much more stable than the metabolisms of people who have been very overweight.

This has no bearing on the conclusion. It only means that over weight people can have varying metabolism compared to the others.

The other choices are fairly straight forward. We don't even need to negate them to check. They are all out of context choices.

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skamal7 wrote:
Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolisms generally remain unchanged. They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level. Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.

The conclusion of the argument above depends on which of the following assumptions?

(A) Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.

(B) The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight.

(C) The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual.

(D) Researchers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents.

(E) Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it.

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In addition to the specific techniques of answering a particular type of question, a general aid to answering a question is to simplify the language. That will make life a lot easier.

For example ,

The premise of the argument: ".....They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level."

The conclusion of the argument: "Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate."

The gist of the premise can be noted down as follows: burn significantly fewer calories
The gist of the conclusion can be noted down as follows: ultimately gain weight

An assumption is something which connects the two.

The gist of choice A: Few continue to consume few calories

We can see that A makes sense as if overweight people burn fewer calories and continue to consume more calories at the reduced weight , they will ultimately regain weight.

The bold one is the premise, the underlined one is the assumption and the one in italics is the conclusion.

At least if one has a rough sense of the answer quickly, one can spend more time on it to check its correctness.
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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chiccufrazer1 wrote:
would you please explain a little bit more on how negation works and how useful it is when tackling questions like these..thanks

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It's something we call the ANT (Assumption Negation Technique)
To understand it, you first need to understand what an assumption is. An assumption is a necessary missing premise. Premises support the conclusion. An assumption is also a premise but it is not given in the argument. Additionally, it is a necessary premise for the conclusion to hold true.

Say, take a simple example:

You are studying very hard. You are putting in 10 hrs a day. You work your way through many questions every day. You will pass the test.

Premises:
You are studying very hard.
You are putting in 10 hrs a day.
You work your way through many questions every day.

Conclusion:
You will pass the test.

Assumption:
Is there a premise you NEED to make the conclusion hold?
"Hard work is sufficient to pass the test"

This is an assumption the author is making. He hasn't said this as such in his argument but he is assuming it. He is assuming that hard work is enough to pass.

The argument would be more complete if it looked like this:
You are studying very hard. You are putting in 10 hrs a day. You work your way through many questions every day. Hard work is sufficient to pass the test. Hence, you will pass the test.

What if I negate this assumption and make it: "Hard work is not sufficient to pass the test"
Can my conclusion still hold?
So you are studying very hard but hard work alone may not be enough. Can I say that you will pass the test? No. This is the point of negating the assumption. If the assumption is negated, the conclusion cannot hold. It is necessary that the assumption must hold if the conclusion has to hold.

If you negate an option and there is still a possibility that the conclusion can hold, it means the option is not an assumption.
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 26 Oct 2014, 01:28
Taku wrote:
Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolism generally remain unchanged. They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level. Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.

The conclusion of the argument above depends on which of the following assumptions?

A: Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.
B: The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight.
C: The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual.
D: Reseachers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents.
E: Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it.



IMO A !!

Author Conclusion is : People who shade their weight, ultimately regain weight until their body size again matches their metabolic rate

Author cited that theory of calorie burning in these people, where he assumes that these people will continue to consume as much calories as they used to in past, or we can say these people will not reduce their calorie consumption & hence they will ultimately gain weight in long run.

Rest all does not fit in question stem & conclusion.

Just not happy bcoz took 3.14 mins !!

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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 14 Jun 2015, 11:42
Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolism generally remain unchanged. They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level. Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.

The conclusion of the argument above depends on which of the following assumptions?

Premise 1: Overweight people dieted down to a new weight. This weight lose is because of "dieting". (They have come down from W1 to W2)
Premise 2: Since they will burn more calories than people who are already at less weight (W2).
Conclusion: they will gain weight and go back to previous weight (W1)

Prethinking : Any other reason which doesn't avoid or prevent the weight gain should be the assumption.


A: Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.
Since the overweight people have high metabolism rate than the people at the lower weight so if they eat less food, the metabolism rate can be controlled and they can stay at the lower weight -> which breaks the argument
hence correct.


B: The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight.
as per premise the metabolism is lower than metabolism of the over weight people and weather they can vary or not is out of scope of the argument

C: The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual.
Suppose lets say, this option is premise. Then how do you know if "amount that is consumed" is less enough to decrease the metabolism rate or still more to continue the same metabolism rate.

D: Researchers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents.
Completely out of scope

E: Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it.
Completely out of scope
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 17 Jun 2015, 13:10
Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolism generally remain unchanged. They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level. Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.

The conclusion of the argument above depends on which of the following assumptions?

The conclusion is that overweight people who lose weight will regain it because their metabolism remains as low as it was prior to the weight loss.

A: Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level. If formerly overweight people didn't maintain a low calorie diet, this would cause them to regain the weight, too.
B: The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight. We're concerned with people who have been very overweight.
C: The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual. The passage suggests that weight, and not food consumption determines calorie burn.
D: Reseachers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents. Chemical agents are out of scope.
E: Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it. People who are at their usual weight are out of scope.
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 03 Jun 2017, 22:39
Taku wrote:
Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolism generally remain unchanged. They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level. Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.

The conclusion of the argument above depends on which of the following assumptions?

A: Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.
B: The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight.
C: The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual.
D: Reseachers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents.
E: Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it.

Fact:When very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolism generally remain unchanged. i.e., they will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level.

Missing information:So to maintain the new weight they will have to consume substantially fewer calories than do people whose normal weight is at that level. But such people do not continue to do that . So

Conclusion:they will ultimately regain weight until their body size again matches their metabolic rate.

Choice A matches the missing information
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Re: Researchers have found that when very overweight people, who tend to h  [#permalink]

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New post 18 Jun 2017, 14:51
sriamlan wrote:
why can't D be an answer here? Even D is correct.


Hi,

D is out scope because it's talking about what has not been done and is irrelevant to the reason the conclusion that because metabolism remains constant, overweight people will always gain back the weight they lose. A good assumption would have to strengthen that conclusion, i.e that former overweight people are relatively unable to reduce their caloric intake compared to thin people in addition to having poor metabolisms. If this assumption is true as in option A, then the conclusion is more likely.
Re: Researchers have found that when very overweight people, who tend to h &nbs [#permalink] 18 Jun 2017, 14:51

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