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a math question from GWD

If y is an integer and y = 1x1+ x, is y = 0?

(1)   x < 0

(2)             y < 1

                  

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.


the solution is d, but for 2) how abt x=1/3

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如果X=1/3的话,Y就不是整数了阿,楼主加油

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thanks
I read so fast that didn't notice this and always omit some important conditions @ @

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 No problem ,good luck!

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如果y是整数的话,y<1只能是0或者负数,但y是得不出来负数的,所以这条件也满足

选D, 没错

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