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Answer D in case of DS......

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Joined: 12 May 2006
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Answer D in case of DS...... [#permalink] New post 04 Mar 2007, 22:10



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Hi All,

In case of DS question if D is the answer isn't it necessary for the computation to give the same answer from both the given statements.

I understand that many a times in DS questions its not at all necessary to do the computation till the end but still this can be used as a verification technique (provided u have time).

Fo example in the question below though the answer is D the computation results differently.

If today the price of an item is $3,600, what was the price of the item exactly 2 years ago?
(1) The price of the item increased by 10 per-cent per year during this 2-year period.
(2) Today the price of the item is 1.21 times its price exactly 2 years ago.
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 [#permalink] New post 05 Mar 2007, 01:42
let's start with your example first....
here the answer is D, and unlike what you wrote, the computation gives the same answer for both statements. check your calculations.

in general - GMAT never claims or requires that the answer should be the same in such situations - so in principle the answers to the stem can be different and the answer to the question still be D. but - i have never seen a question that does tricks with this... if the answer is D - the answers to stem are the same.

I wouldn't rely on it for choosing an answer, but i would use it as an alarming device... (i.e. if answers are not the same, either check the calculations or check the answer)
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 [#permalink] New post 05 Mar 2007, 07:06
The information in (1) will never contradict the information in (2). Thus, if each of (1) and (2) is sufficient, (1) and (2) will yield the same answer.
  [#permalink] 05 Mar 2007, 07:06
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Answer D in case of DS......

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