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In a recent study, a group of subjects had their normal dail

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In a recent study, a group of subjects had their normal dail  [#permalink]

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New post 11 Nov 2013, 14:41
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In a recent study, a group of subjects had their normal daily caloric intake increased by 25 percent. This increase was entirely in the form of alcohol. Another group of similar subjects had alcohol replace non-alcoholic sources of 25 percent of their normal daily caloric intake. All subjects gained body fat over the course of study, and the amount of body fat gained was the same for both groups.

Which one of following is most strongly supported by the information above?

(A) Alcohol is metabolized more quickly by the body than are other food and drinks.
(B) In general population, alcohol is the primary cause of gains in body fat.
(C) An increased amount of body fat does not necessarily imply a weight gain.
(D) Body fat gain is not dependent solely on the number of calories one consumes.
(E) The proportion of calories from alcohol in a diet is more significant for body fat gain than are the total calories from alcohol

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Re: In a recent study, a group of subjects had their normal dail  [#permalink]

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New post 11 Nov 2013, 19:29
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Hint: one group had their caloric intake increased, but the other group did not.
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Re: In a recent study, a group of subjects had their normal dail  [#permalink]

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New post 18 Nov 2013, 02:01
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In a recent study, a group of subjects had their normal daily caloric intake increased by 25 percent. This increase was entirely in the form of alcohol. Another group of similar subjects had alcohol replace non-alcoholic sources of 25 percent of their normal daily caloric intake. All subjects gained body fat over the course of study, and the amount of body fat gained was the same for both groups.

Which one of following is most strongly supported by the information above?

(A) Alcohol is metabolized more quickly by the body than are other food and drinks.
(B) In general population, alcohol is the primary cause of gains in body fat.
(C) An increased amount of body fat does not necessarily imply a weight gain.
(D) Body fat gain is not dependent solely on the number of calories one consumes.
(E) The proportion of calories from alcohol in a diet is more significant for body fat gain than are the total calories from alcohol[/quote]


guess D has a flaw in it and this question is lacking a right choice. what if the number of calories one consumes is the sole reason for the body fat gain ?? even in that case the argument may holds true !!
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Re: In a recent study, a group of subjects had their normal dail  [#permalink]

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New post 18 Nov 2013, 02:56
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u r wrong. if no. of calories is the sole reason for increase in body fat then the first group must have gained more fat than the second group. if you quantify the problem it is easier. assume both groups take 100 cal daily. for group A alcohol is in addition to 100 cal. so total intake is 125cal. for B 25 cal from non alcoholic sources is replaced by alcoholic sources. so total cal is 100cal. only source is changed. YET, the amount of fat gain is same for both. Hence there are other factors than calories alone.
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Re: In a recent study, a group of subjects had their normal dail  [#permalink]

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New post 16 Jan 2014, 17:54
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Argument assumes that Alcohol provides the maximum calorie.And,nothing can substitute that energy if alcohol intake is less.So less alcohol intake means less calorie.Even less calorie intake is leading to same body fat gain.Consequently,Body fat gain is not dependent solely on the number of calories one consumes.
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In a recent study, a group of subjects had their normal dail  [#permalink]

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New post 20 Jun 2014, 12:55
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Misread the question first time.. note the underlined portion of the premise.
What it means ->

Group A & B with 3000 cal per person.
Group A -> 3000 cal + 750 cal (in alcohol) = Total 3750 cal
Group B -> 3000 cal ~ replace 750 cal with alcohol = Total 3000 cal Both Group have 750 cal from alcohol
--------------------------------------------------------------------------------
result -> Gained body fat in BOTH !!!


Conclusion : Gained in body fat is NOTa result of increased calories intake but of content eaten.

Only D fits!

Please point out any error in logic here.
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dentobizz wrote:
In a recent study, a group of subjects had their normal daily caloric intake increased by 25 percent. This increase was entirely in the form of alcohol. Another group of similar subjects had alcohol replace non-alcoholic sources of 25 percent of their normal daily caloric intake. All subjects gained body fat over the course of study, and the amount of body fat gained was the same for both groups.

Which one of following is most strongly supported by the information above?

(A) Alcohol is metabolized more quickly by the body than are other food and drinks.
(B) In general population, alcohol is the primary cause of gains in body fat.
(C) An increased amount of body fat does not necessarily imply a weight gain.
(D) Body fat gain is not dependent solely on the number of calories one consumes.
(E) The proportion of calories from alcohol in a diet is more significant for body fat gain than are the total calories from alcohol

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Re: In a recent study, a group of subjects had their normal dail  [#permalink]

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New post 02 Oct 2015, 12:56
eliminated options to B and D.
chose B by mistake overlooking general population and underestimating number of calories concept.
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Re: In a recent study, a group of subjects had their normal dail  [#permalink]

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New post 14 Nov 2017, 16:04
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dentobizz wrote:
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In a recent study, a group of subjects had their normal daily caloric intake increased by 25 percent. This increase was entirely in the form of alcohol. Another group of similar subjects had alcohol replace non-alcoholic sources of 25 percent of their normal daily caloric intake. All subjects gained body fat over the course of study, and the amount of body fat gained was the same for both groups.

Which one of following is most strongly supported by the information above?

(A) Alcohol is metabolized more quickly by the body than are other food and drinks.
(B) In general population, alcohol is the primary cause of gains in body fat.
(C) An increased amount of body fat does not necessarily imply a weight gain.
(D) Body fat gain is not dependent solely on the number of calories one consumes.
(E) The proportion of calories from alcohol in a diet is more significant for body fat gain than are the total calories from alcohol


Let us assume initial calorie intake to be 100 in each group.
Calorie intake in first group increase by 25 percent. Alcohol was added here. New intake = 125
Calorie intake in second group was replaced - 25% of the diet consisting of alcohol was replaced by non alcohol. 100+25-25 = 100..
Calorie intake is definitely more in first group right now but results show the fat gained as same in both, hence, fat gain is not dependent solely on number of calories. There might be other factors. D
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Re: In a recent study, a group of subjects had their normal dail  [#permalink]

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New post 22 Jan 2018, 06:27
Based on the study made on two groups of subjects, we can conclude the increase in the amount of calorie intake alone cannot increase body fat gain. Hence choice D is right.

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Re: In a recent study, a group of subjects had their normal dail  [#permalink]

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New post 11 May 2018, 04:36
VERITAS SOLUTION
Solution: D

Since the question stem indicates that the information “above” is supporting answer choices below, the answer choices must be potential conclusions and this is an Inference question. Given that, our first line of defense is the “no new information” filter. Remember that valid conclusions must always (not just sometimes) be true, and therefore must be based entirely on the information found in the premises or they are "out of scope".

Answer choice “A” talks about the metabolization rate of alcohol. This is not found anywhere in the premises, so we have new information. Therefore, we cannot make a conclusion about something we don’t have information on. Answer choice “A” is not necessarily true.

Answer choice “B” talks about the “general population.” While this is a common tendency of researchers to infer characteristics about a general population using an experiment on a subsample, such methods can never lead to “must-always-be-true” conclusions. We should always be cautious about generalizing. Answer choice “B” is not necessarily true based off of the given information.

Ironically, our argument for eliminating answer choice “C” is the same as the wording of answer choice “C”. Answer choice “C” talks about “weight gain.” While the problem talks about “gaining body fat”, this is not necessarily the same thing as “weight gain.” The phrase “weight gain” is not found anywhere in the premises, so answer choice “C” contains new information. Therefore, we cannot make a conclusion about something we don’t have information on. Answer choice “C” is not necessarily true.

Answer choice “D” contains no new information. We can see from the problem that the body fat gain was the same for both groups, regardless of if the group replaced calories with alcohol or supplemented their caloric intake with additional alcohol. (In other words, “different number of calories, same body fat gain.”) If anything, the body fat gain seemed to be dependent more on the number of calories from alcohol than the total number of calories. Thus, body fat gain cannot be dependent solely on the number of calories one consumes. The premises tell us that “D” must always be true.

Answer choice “E” actually is the opposite of any conclusion that can be made using the information above. The experiment tells us that the body fat gain was the same for both groups, regardless of if the group replaced calories with alcohol or supplemented their caloric intake with additional alcohol. (In other words, “different number of calories, same body fat gain.”) If anything, the body fat gain seemed to be dependent more on the number of calories from alcohol than the total number of calories. This is opposite of answer choice “E”. (Though, for the sake of discussion, subgroup experiments can never truly prove explicit causation for a general populace. Any way you look at it, “E” cannot be the correct answer!)
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