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标题: prep的一道DS,望解答............ [打印本页]

作者: kevinw11    时间: 2011-8-19 15:47
标题: prep的一道DS,望解答............
203.19582-!-item-!-187;#058&012370

What is the remainder when the positive integer x is divided by 6?



(1)When x is divided by 2, the remainder is 1; and when x is divided by 3, the remainder is 0.



(2)When x is divided by 12, the remainder is 3.

--------------------------------------------------------------------------------------------------------------------------------------------------------【答案】D

这题我选的B
(1)怎么也能得出答案呢?那如果X=3的话,也满足(1)的条件哇,但是除6的话不就是不行了吗?
本人数学不是很好,望高人解答...........

作者: 幻世弋无双    时间: 2011-8-19 15:48
X=3的时候除6余3 没有规定比6小的数就不能除6

这题只要把数字都列出来就一目了然
作者: kevinw11    时间: 2011-8-19 15:51
X=3的时候除6余3 没有规定比6小的数就不能除6

这题只要把数字都列出来就一目了然
-- by 会员 幻世弋无双 (2011/8/19 15:48:55)


原来3除以6余3啊,谢谢了,我还以为3除6能除尽等于0.5呢,谢谢啦啊




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