问题 单项选择题

If k is an integer greater than 44 and less than 51,then which of the following could be the product of 11 and k ?()

A.565

B.550

C.500

D.484

E.440

答案

参考答案:B

解析:

11与k的乘积应该在484与561之间,所以(A) ,(D)和(C)都显然不对;又因为500不能被11整除,所以(C)也肯定不对,而550正好是50与11的乘积。

单项选择题
单项选择题