gwd-19 MATH问题请教

brightsunlai · 发表于 2011-9-24 22:49:56

Q18:If q is a positive integer less than 17 andr is the remainder when 17 is divided by q, what is the value of r?
(1) q > 10
(2) q = 2^k, where k is apositive integer.
A. Statement (1) ALONE issufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE issufficient, but statement (1) alone is not sufficient.
C. BOTH statementsTOGETHER are sufficient, but NEITHER statement ALONE issufficient.
D. EACH statement ALONE issufficient.
E. Statements (1) and (2) TOGETHERare NOT sufficient.
Answer:B
为什么不选C呢？哪位NN能帮忙解答一下？
谢谢～～

Heather_Lau · 发表于 2011-9-24 22:51:27

列举法嘛，k=1，2，3，4的时候，r都等于1。
所以选b。

brightsunlai · 发表于 2011-9-24 22:54:56

列举法嘛，k=1，2，3，4的时候，r都等于1。
所以选b。

-- by 会员 Heather_Lau (2011/9/24 22:51:27)

晓得了，谢谢啊～～

gwd-19 MATH问题请教

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