D

gmatcraze wrote:

If x and y are positive integers, is 5x(1/4)y < 1 ?

(1) y = 3x.

(2) x = 2.

(1)

(5x)1/4(3x) < 1

(5x)(3/4x) < 1

15/4x < 1

We are told in the stem that x and y are positive integers, meaning >= 1. If x must be at least 1, then 15/4 * 1 = 3.75 and that's greater than 1. The answer to the stem question is "No." but this statment is sufficient to give us an answer to the stem.

(2) 5(2)(1/4)y < 1

10(1/4)y < 1

2.5y < 1

Again, if y must be a positive integer, then the lowest value possible is 2.5 < 1, so the answer is "No." and this is sufficient information.

_________________

------------------------------------

J Allen Morris

**I'm pretty sure I'm right, but then again, I'm just a guy with his head up his a$$.

Get the best GMAT Prep Resources with GMAT Club Premium Membership