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DS(Number System)

by rintoo22 » Wed May 01, 2013 12:04 pm
Can someone post the correct Question. Me thinks that Statement 2 is invalid. Please help. Question as Follows.
If R = P/Q, is R= P ?
(1) P > 50
(2) 0 < Q = 20
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is
sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
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Source: — Data Sufficiency |

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by Brent@GMATPrepNow » Wed May 01, 2013 2:51 pm
rintoo22 wrote:Please help. Question as Follows.
If R = P/Q, is R < P ?
(1) P > 50
(2) 0 < Q < 20
Please see the revised question above.

Target question: is R < P ?

Statement 1: P > 50
Since there's no info about R, statement 1 is NOT SUFFICIENT

Statement 2: 0 < Q < 20
Since there's no info about R or P, statement 2 is NOT SUFFICIENT

Statements 1 and 2 combined:
There are several sets of values that meet both conditions. Here are two sets:
Case a: P=60, Q=10, R=10, in which case R < P
Case b: P=60, Q=0.5, R=120, in which case R > P
Since we cannot answer the target question with certainty, the combined statements are NOT SUFFICIENT

Answer = E

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
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