X and Y

albany09

        

If x³y⁴
= 5,000, is y = 5?

        

(1)     y
is a positive integer.

        

(2)     x
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.

    

mymengming

答案应该是C吧

5000=5^4*2^3
（1）y可以是1, x=5000^(1/3)
（2）x可以是1或者是5……
（1）+（2）x只能是2，y只能是5