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标题: GWD-13-23 [打印本页]

作者: dhhgh11 时间: 2004-12-13 10:13 标题: GWD-13-23

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.

请给个解体思路，谢谢啊～

作者: lololo 时间: 2004-12-13 10:18

If the answer is B, i think the question should be "is the tenths digit of x nonzero?

作者: dhhgh11 时间: 2004-12-13 17:41

以下是引用lololo在2004-12-13 10:18:00的发言：
If the answer is B, i think the question should be "is the tenths digit of x nonzero?

也许是这样吧

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