Are positive integers P and Q both greater than n? 1.P-Q is

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Are positive integers P and Q both greater than n? 1.P-Q is [#permalink]

08 Jul 2007, 14:26

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Are positive integers P and Q both greater than n?
1.P-Q is grrater than N
2.Q>P

Please explain

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08 Jul 2007, 14:42

P-Q> N
tells us that P must be greater than N but nothing about Q

Q>P
alone tells us nothing.

Both together: P-Q<0>N: so N must be negative: N<P-Q<0
But P and Q are positive:
N<P<Q![/quote]

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09 Jul 2007, 17:06

Let P=15, q=5

1.P-Q is grrater than N:

=10 and if N=9; this hold true. what if N=11..IT BOMBS

2.Q>P

= No info given abut N

Combine: P=5 Q=15

P-Q is always gonna be negative as P-Q. So, C

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09 Jul 2007, 18:07

St1:
Insufficient. P could be very small (smaller than N) and P could be very big, so P-Q > N.

St2:
Doesnt'tells us relationship with N. Insufficient.

Using both, nothing new is made known.
P-Q is negative, since P-Q > N, N must be negative. So P and Q > N.

Ans C

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Re: GmatPrep DS [#permalink]

09 Jul 2007, 19:13

dreamgmat1 wrote:

Are positive integers P and Q both greater than n?
1.P-Q is grrater than N
2.Q>P

(1) Pick P=5, Q=1, N=3, then: P-Q>N, but Q is <N>N, AND Q is > N.
Insuf.

(2) Insuf.

(1&2) P-Q>N and P-Q<0, thus N<0>N and the answer is C.

Re: GmatPrep DS [#permalink] 09 Jul 2007, 19:13

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Are positive integers P and Q both greater than n? 1.P-Q is

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