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[Data Sufficiency]

试题详情

题目:

A total of 100 customers purchased books at a certain bookstore last week. If these customers purchased a total of 200 books, how many of the customers purchased only 1 book each?
(1)   None of the customers purchased more than 3 books.
(2)   20 of the customers purchased only 2 books each.

选项:

答案:

C

提问:

(1)的意思是顾客可以买0、1、2、3本吗?那这个怎么求啊?

解答:

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阅读1626
解答: sysadmin

提问:

数学

解答:

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阅读1599
解答: sysadmin老师

提问:

(1)的意思是顾客可以买0、1、2、3本吗?那这个怎么求啊?

解答:

点赞0
阅读1627
解答: sysadmin老师

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