GWD 13-10

bloomingdales

Q10: If x and y are positive integers, what is the value of x? (1) 3x5y = 1,125 (2) y = 3 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.

Key: A

I pick C

bloomingdales

thanks, I got it   !!!!!!!!!!!!!!!!

xiaojinqiong

我认为是这个题目抄错了,正确的条件(1)应该是3^X * 5^Y=1,125

因为3^2 * 5^3=1125,所以X=2, Y=3. 所以A直接可得答案.

bastencools

应该是C吧，这道题怎么可能是A？？

strawdog

from statement 1, we can get x=2 and y=3. Thus A is the right answer.