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[Data Sufficiency]

试题详情

题目:

If the average (arithmetic mean) of four different numbers is 30, how many of the numbers are greater than 30?
(1)     None of the four numbers is greater than 60.
(2)     Two of the four numbers are 9 and 10, respectively.

选项:

答案:

C

提问:

DS (1)(2)一起为什么充分

解答:

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阅读979
解答: sysadmin

提问:

DS (1)(2)一起为什么充分

解答:

点赞0
阅读980
解答: sysadmin老师

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