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data suffciency

Expert replies
by vaivish » Sat Jul 19, 2008 10:47 am
If bin A contains exactly twice as many potatoes as bin B, and if bin A contains exactly 11 more potatoes than bin C, does bin B contain more potatoes than bin C ?

(1) The difference between the number of potatoes in bin C and the number in bin A is greater than the number of potatoes in bin B.

(2) If one potato were added to bin A and to bin C, bin A would contain exactly twice as many potatoes as bin C.



a. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked.

b. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked.

c. BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked; but NEITHER statement ALONE is sufficient.

d. EACH statement ALONE is sufficient to answer the question asked.

e. Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.
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Source: — Data Sufficiency |

by preetha_85 » Sat Jul 19, 2008 9:04 pm
Hi ,

I think the answer is D. Wats the OA ?
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by VP_Tatiana » Sat Jul 19, 2008 9:48 pm
There appears to be an error in this problem.

The question stem tells us that A is twice B. Thus, A must be an even number.

However, statement (2) tells us that A + 1 = 2(C + 1). Thus, A + 1 must be an even number.

These are in direct contradiction.
Tatiana Becker | GMAT Instructor | Veritas Prep
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