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Fresh potatoes generally cost about $2 for a 10-pound bag,  Question banks Downloads My Bookmarks Reviews Important topics Author Message TAGS: Intern Joined: 12 Jun 2008 Posts: 15 Followers: 0 Kudos [?]: 0 [0], given: 0 Fresh potatoes generally cost about$2 for a 10-pound bag, [#permalink]  12 Jun 2008, 14:38
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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.x (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.
So could you tell me how I can choose the correct one?

Last edited by yankevi on 12 Jun 2008, 20:46, edited 1 time in total.
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Re: RC [#permalink]  12 Jun 2008, 14:48
My guess here is D.
Maybe the sales are increasing just because the price has gone down.
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Re: RC [#permalink]  12 Jun 2008, 15:00
IMO B.
We are comparing apple and oranges here in given passage. B correctly point to that flaw that dehydrated potato is different from fresh one in that dehydrated one is without water.
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Re: RC [#permalink]  12 Jun 2008, 15:07
I’ll pick B.

Reasoning:

Quote:
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. (basically it tells us that some people are ready to pay 2 1/2 times more for convenience. This does not weaken the conclusion) (B) Since fresh potatoes are 80 percent water, one pound of dehydrated potatoes is the equivalent of 5 pounds of fresh potatoes. (From there it follows that 2 pounds of dehydr potatoes are equivalent to 10-pound bag of fresh potatoes. So, we need to compare$2 and $3*2=6$ dollars. The latter sum is only 3 times bigger than former, not 15 times as the argument suggests. So, here is the flaw)

(C) Peeled potatoes in cans are also more expensive than the less convenient fresh potatoes.
(says nothing about how much consumers are willing to pay for convenience)

(D) Retail prices of dehydrated potatoes have declined by 20 percent since 1960 to the current level of about $3 a pound. (that prices somewhat declined says nothing about current willingness to pay for convenience) (E) As a consequence of labor and processing costs, all convenience foods cost more than the basic foods from which they are derived. (says nothing about how much consumers are willing to pay for convenience) Director Joined: 01 Jan 2008 Posts: 629 Followers: 3 Kudos [?]: 139 [0], given: 1 Re: RC [#permalink] 12 Jun 2008, 15:54 I also pick B Director Joined: 14 Aug 2007 Posts: 734 Followers: 8 Kudos [?]: 118 [0], given: 0 Re: RC [#permalink] 12 Jun 2008, 19:22 yankevi 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.
(still fresh ones remain costlier)
(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. (beyond the scope)
(D) Retail prices of dehydrated potatoes have declined by 20 percent since 1960 to the current level of about $3 a pound. (does not help to answer the question) (E) As a consequence of labor and processing costs, all convenience foods cost more than the basic foods from which they are derived. (again does not help to answer the question) B for me, By the way this CR and not RC CEO Joined: 29 Mar 2007 Posts: 2591 Followers: 16 Kudos [?]: 234 [0], given: 0 Re: CR1 [#permalink] 13 Jun 2008, 06:15 yankevi 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.x
(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 $3 a pound. (E) As a consequence of labor and processing costs, all convenience foods cost more than the basic foods from which they are derived. I have no idea about this RC . So could you tell me how I can choose the correct one? Math problem. Don't turn off ur math reasoning just b/c its a CR. 2$=10lb fresh
3$=1lb Dehyd. 1$/5lb Frsh

15$/5lb. No new info, the statement is correct for now. B states that 1lb of Dehyd=5lb of Frsh Thus, Now we really have 15$/25Frsh ---> or 3$/5lb Frsh. While still more expensive, it certainly is not 15times more expensive. Re: CR1 [#permalink] 13 Jun 2008, 06:15 Similar topics Replies Last post Similar Topics: 1 Sam's Grocery store sells potatoes only in 5-pound bags and 1 07 Sep 2013, 00:58 1 Potatos.... 4 05 Aug 2010, 11:27 1 Fresh potatoes generally cost about$2 for a 10-pound bag, 5 09 Apr 2010, 22:59