Board logo

标题: GWD M9-26 [打印本页]

作者: jessie1981    时间: 2006-8-19 00:36     标题: GWD M9-26

In the decimal representation of x, where 0 < x < 1, is the tenths digit if x nonzero?

(1) 16x is an integer.

(2) 8x is an integer.

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.

这道题不是太懂,请大家帮忙!


作者: chichin    时间: 2006-8-19 23:23

1) 16*x, x=1/16, 1/16=0.0624 no

         x=1/8, 1/8=0.125, yes

         so not sufficient

2) 8*x,  x=1/8, 1/8=o.125 yes

         x=1/4, 1/4=0.25  yes

         so sufficient.

 answer (B)


作者: creativity    时间: 2006-8-19 23:43

agree with chichin!




欢迎光临 国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/) Powered by Discuz! 7.2