Fresh potatoes generally cost about $2 for a 10-pound bag, : GMAT Critical Reasoning (CR)
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Fresh potatoes generally cost about $2 for a 10-pound bag,

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Fresh potatoes generally cost about $2 for a 10-pound bag, [#permalink]

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New post 09 Jan 2008, 10:48
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Fresh potatoes generally cost about $2 for a 10-pound bag, whereas dehydrated instant potatoes cost, on average, about $3 per pound. It can be concluded that some consumers will pay 15 times as much for convenience, since sales of this convenience food continue to rise.

Which of the following, if true, indicates that there is a major flaw in the argument above?

(A) Fresh potatoes bought in convenient 2-pound bags are about $1 a bag, or 2 1/2 times more expensive than fresh potatoes bought in 10-pound bags.

(B) Since fresh potatoes are 80 percent water, one pound of dehydrated potatoes is the equivalent of 5 pounds of fresh potatoes.

(C) Peeled potatoes in cans are also more expensive than the less convenient fresh potatoes.

(D) Retail prices of dehydrated potatoes have declined by 20 percent since 1960 to the current level of about $3 a pound.

(E) As a consequence of labor and processing costs, all convenience foods cost more than the basic foods from which they are derived



Please explain why your answer is correct.
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Re: CR: Potatoes [#permalink]

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New post 09 Jan 2008, 11:44
(B) Since fresh potatoes are 80 percent water, one pound of dehydrated potatoes is the equivalent of 5 pounds of fresh potatoes.

According to this people aren't necessarily willing to pay 15x more for convenience. They're really only paying about 3x more.
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Re: CR: Potatoes [#permalink]

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New post 09 Jan 2008, 21:27
tarek99 wrote:
Fresh potatoes generally cost about $2 for a 10-pound bag, whereas dehydrated instant potatoes cost, on average, about $3 per pound. It can be concluded that some consumers will pay 15 times as much for convenience, since sales of this convenience food continue to rise.

Which of the following, if true, indicates that there is a major flaw in the argument above?

(A) Fresh potatoes bought in convenient 2-pound bags are about $1 a bag, or 2 1/2 times more expensive than fresh potatoes bought in 10-pound bags.

(B) Since fresh potatoes are 80 percent water, one pound of dehydrated potatoes is the equivalent of 5 pounds of fresh potatoes.

(C) Peeled potatoes in cans are also more expensive than the less convenient fresh potatoes.

(D) Retail prices of dehydrated potatoes have declined by 20 percent since 1960 to the current level of about $3 a pound.

(E) As a consequence of labor and processing costs, all convenience foods cost more than the basic foods from which they are derived



Please explain why your answer is correct.
thanks


I was just about to post this problem from one of the paper tests I took. I thought it was a great problem. Here was my analysis that I posted into excel.

C: irrelevant. D: irrelevant. E: irrelevant. For AB do the math! 1lb of dehydrated=5lbs fresh. 2$ for 10lb 3$*10 dehydrated lb =30$. So it would seem that 30/2=15 times more. But b/c 1lb=5lbs of fresh. Its actually 6$ for 2lbs of dehydrated which is 10lbs of fresh, which is actually only 3 times more expensive. So this is why B is correct. A: the weight of the bag is irrelevatn here.
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Re: CR: Potatoes [#permalink]

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New post 09 Jan 2008, 22:41
GMATBLACKBELT wrote:
tarek99 wrote:
Fresh potatoes generally cost about $2 for a 10-pound bag, whereas dehydrated instant potatoes cost, on average, about $3 per pound. It can be concluded that some consumers will pay 15 times as much for convenience, since sales of this convenience food continue to rise.

Which of the following, if true, indicates that there is a major flaw in the argument above?

(A) Fresh potatoes bought in convenient 2-pound bags are about $1 a bag, or 2 1/2 times more expensive than fresh potatoes bought in 10-pound bags.

(B) Since fresh potatoes are 80 percent water, one pound of dehydrated potatoes is the equivalent of 5 pounds of fresh potatoes.

(C) Peeled potatoes in cans are also more expensive than the less convenient fresh potatoes.

(D) Retail prices of dehydrated potatoes have declined by 20 percent since 1960 to the current level of about $3 a pound.

(E) As a consequence of labor and processing costs, all convenience foods cost more than the basic foods from which they are derived



Please explain why your answer is correct.
thanks


I was just about to post this problem from one of the paper tests I took. I thought it was a great problem. Here was my analysis that I posted into excel.

C: irrelevant. D: irrelevant. E: irrelevant. For AB do the math! 1lb of dehydrated=5lbs fresh. 2$ for 10lb 3$*10 dehydrated lb =30$. So it would seem that 30/2=15 times more. But b/c 1lb=5lbs of fresh. Its actually 6$ for 2lbs of dehydrated which is 10lbs of fresh, which is actually only 3 times more expensive. So this is why B is correct. A: the weight of the bag is irrelevatn here.


Agree!

At first, I choose C because the most epensive must be the most convinient and because I dont know what is the peeled. After reading this, B surely correct my misleading! Thanks
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Re: CR: Potatoes [#permalink]

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New post 10 Jan 2008, 02:00
B it is

OA???????????????
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Re: CR: Potatoes [#permalink]

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New post 10 Jan 2008, 06:10
OA is B. Thanks guys
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Re: CR: Potatoes [#permalink]

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New post 10 Jan 2008, 19:18
good question ... said B as well.
Re: CR: Potatoes   [#permalink] 10 Jan 2008, 19:18
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