Data Sufficiency

试题详情

题目:

What is the remainder when the sum of the positive integers x and y is divided by 6?
(1)     When x is divided by 6, the remainder is 3.
(2)     When y is divided by 6, the remainder is 1.

选项:

答案:

C

提问:

老师,我选的是E,可答案是C。老师讲一下思路吧。谢谢
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