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Raisins are made by drying grapes in the sun

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Raisins are made by drying grapes in the sun  [#permalink]

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New post 08 Feb 2015, 14:52
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Raisins are made by drying grapes in the sun. Although some of the sugar in the grapes is caramelized in the process, nothing is added. Moreover, the only thing removed from the grapes is the water that evaporates during the drying, and water contains no calories or nutrients. The fact that raisins contain more iron per food calorie than grapes do is thus puzzling.

Which one of the following, if true, most helps to explain why raisins contain more iron per calorie than do grapes?

(A) Since grapes are bigger than raisins, it takes several bunches of grapes to provide the same amount of iron as a handful of raisins does.
(B) Caramelized sugar cannot be digested, so its calories do not count toward the food calorie content of raisins.
(C) The body can absorb iron and other nutrients more quickly from grapes than from raisins because of the relatively high water content of grapes.
(D) Raisins, but not grapes, are available year-round, so many people get a greater share of their yearly iron intake from raisins than from grapes.
(E) Raisins are often eaten in combination with other iron-containing foods, while grapes are usually eaten by themselves.

Source: PowerScore CR Bible (Official LSAT question discovered in the CR Bible)

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Re: Raisins are made by drying grapes in the sun  [#permalink]

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New post 08 Feb 2015, 18:17
Maybe I'm wrong here, but the OA doesn't really make much sense....
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Re: Raisins are made by drying grapes in the sun  [#permalink]

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New post 08 Feb 2015, 19:17
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I think (B) lowers the number of calories, it doesn't "hide" the iron - the amount of iron actually stays the same. Let me explain the question.

The discrepancy that needs to be resolved in this question is that raisins have more iron per calorie than grapes even though the only differences between raisins and grapes are that raisins have less water (which is calorie and nutrient free) and as grapes turn into raisins, some of the sugar is caramelized. We'd expect that the iron per calorie stays the same because it seems that the number of calories and the amount of iron in a grape and it's future raisin-self would be the same.

The only ways to explain this discrepancy are: 1) show that some iron gets added; or 2) show that some calories are lost.

(B) capitalizes on the second option. The caramelization ends up reducing the number of calories, so while the iron amount remains the same, the ratio of iron to calories changes.

(A) compares the number of bunches needed of each to provide a certain amount of iron - where are the calories?

(C) is out of scope as it focuses on absorption rates.

(D) is out of scope - availability?

(E) is out of scope - other foods?

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Re: Raisins are made by drying grapes in the sun  [#permalink]

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New post 14 Jan 2016, 05:46
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Raisins are made by drying grapes in the sun. Although some of the sugar in the grapes is caramelized in the process, nothing is added.
Moreover, the only thing removed from the grapes is the water that evaporates during the drying, and water contains no calories or nutrients. The fact that raisins contain more iron per food calorie than grapes do is thus puzzling.

Which one of the following, if true, most helps to explain why raisins contain more iron per calorie than do grapes?

(A) Since grapes are bigger than raisins, it takes several bunches of grapes to provide the same amount of iron as a handful of raisins does.............this repeats the fact that raisins contain more iron but does not explain why?

(B) Caramelized sugar cannot be digested, so its calories do not count toward the food calorie content of raisins.........This explains that since food calorie is reduced in the ratio of iron to food calorie the ratio value increases and thus raisins have more ion per food than grapes.

(C) The body can absorb iron and other nutrients more quickly from grapes than from raisins because of the relatively high water content of grapes...............How body absorbs is not of concern here. OFS

(D) Raisins, but not grapes, are available year-round, so many people get a greater share of their yearly iron intake from raisins than from grapes................why they contain more iron is the question not how much they are available

(E) Raisins are often eaten in combination with other iron-containing foods, while grapes are usually eaten by themselves................how they are consumed are out of concern and does not explain anything.
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Re: Raisins are made by drying grapes in the sun  [#permalink]

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New post 14 Jan 2016, 11:38
B! Phrased another way, 1 raisin will have fewer calories than 1 grape since caramelized sugars aren't digested (bull ****, but assumed). While the iron amount remains the same, the iron amount PER CALORIE is obviously higher for 1 raisin, since it has less calories.
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Re: Raisins are made by drying grapes in the sun  [#permalink]

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New post 11 Apr 2017, 06:18
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BrainLab wrote:
Raisins are made by drying grapes in the sun. Although some of the sugar in the grapes is caramelized in the process, nothing is added.
Moreover, the only thing removed from the grapes is the water that evaporates during the drying, and water contains no calories or nutrients.
The fact that raisins contain more iron per food calorie than grapes do is thus puzzling.

Which one of the following, if true, most helps to explain why raisins contain more iron per calorie than do grapes?

(A) Since grapes are bigger than raisins, it takes several bunches of grapes to provide the same amount of iron as a handful of raisins does.
(B) Caramelized sugar cannot be digested, so its calories do not count toward the food calorie content of raisins.
(C) The body can absorb iron and other nutrients more quickly from grapes than from raisins because of the relatively high water content of grapes.
(D) Raisins, but not grapes, are available year-round, so many people get a greater share of their yearly iron intake from raisins than from grapes.
(E) Raisins are often eaten in combination with other iron-containing foods, while grapes are usually eaten by themselves.


Source : LSAT PrepTest 36, December 2001
Source : Veritas Prep
Source : PowerScore

Explanation from Veritas Prep


In this example, you learn that when grapes are turned into raisins, no nutrients are gained or lost, and the only major change is that some sugar is caramelized. You then learn that somehow the iron per food calorie has increased during this process. But how can that be? This is the paradox that you should isolate instead of the normal conclusion on a Strengthen question: How can iron per food calorie increase when no nutrients are gained or lost and the only change is that sugar is caramelized? There must be some missing link that allows these seemingly contradictory statements to stand, and that is what you look for in the answer choices—a new piece of information that when added to this stimulus removes that paradox and logically links the two statements. Notice the importance of reading the “conclusion” (which in this case is the paradox) carefully. The entire paradox deals with “iron per calorie”—not iron per second, iron per year, iron per meal, or iron per handful, as some of the answer choices seek to explain. If the calories from caramelized sugar do not count toward the caloric value, thereby reducing the denominator of that fraction and increasing the overall value, then you can understand how that ratio increased. No iron was gained (what your brain naturally tries to explain) but the calories are no longer counted, so answer choice B is correct.

Explanation from PowerScore


The paradox in this stimulus is that raisins contain more iron per calorie than grapes even though the two as almost identical in composition. But there is a different: "some of the sugar in grapes is caramelized" as the grapes are dried in the sun. Since this is the only stated difference between the two that could affect the calorie count (water has no calorie), you should focus on an answer that discusses this difference.

Answer choice (B): This is the correct answer. If the iron content in the raisins and grapes is identical, but raisins have fewer calories for counting purposes, then the iron per calorie will be higher for raisins, as highlighted by the following example:

_______________Raisins_______Grapes
Units of Iron_______100________100
Countable Calories___10_________20
Iron per Calorie_____10_________5

Note that the paradox could have addresses any common element between raisins and grapes (such as fiber or fat), and raisins would always have the higher per calorie content since they contain fewer countable calories.
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Re: Raisins are made by drying grapes in the sun  [#permalink]

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New post 20 Apr 2018, 03:24
The argument says that Iron per calorie from resins is greater than that from grapes.
Iron/calorie --> This fraction will come down for a fixed value of Iron content if total calorie is down. Only option B fits the bill

+1 for option B
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Re: Raisins are made by drying grapes in the sun  [#permalink]

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New post 21 Apr 2018, 10:49
BrainLab wrote:
Raisins are made by drying grapes in the sun. Although some of the sugar in the grapes is caramelized in the process, nothing is added. Moreover, the only thing removed from the grapes is the water that evaporates during the drying, and water contains no calories or nutrients. The fact that raisins contain more iron per food calorie than grapes do is thus puzzling.


Which one of the following, if true, most helps to explain why raisins contain more iron per calorie than do grapes?

(A) Since grapes are bigger than raisins, it takes several bunches of grapes to provide the same amount of iron as a handful of raisins does.

(B) Caramelized sugar cannot be digested, so its calories do not count toward the food calorie content of raisins.

(C) The body can absorb iron and other nutrients more quickly from grapes than from raisins because of the relatively high water content of grapes.

(D) Raisins, but not grapes, are available year-round, so many people get a greater share of their yearly iron intake from raisins than from grapes.

(E) Raisins are often eaten in combination with other iron-containing foods, while grapes are usually eaten by themselves.

(B)
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Re: Raisins are made by drying grapes in the sun &nbs [#permalink] 21 Apr 2018, 10:49
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