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[Problem Solving]

试题详情

题目:

A certain company assigns employees to offices in such a way that some of the offices can be empty and more than one employee can be assigned to an office.  In how many ways can the company assign 3 employees to 2 different offices?

选项:

A、5
B、6
C、7
D、8
E、9

答案:

D

提问:

这道题应该用列举法吗??

解答:

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阅读3438
解答: sysadmin

提问:

这道题应该用列举法吗??

解答:

点赞0
阅读3439
解答: sysadmin老师

提问:

30 21怎么算

解答:

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阅读3427
解答: sysadmin老师

提问:

这道看似比较白痴的题还是需要问一下姐姐。

解答:

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阅读3418
解答: sysadmin老师

提问:

A certain company assigns employees to offices in such a way that some of the offices can be empty and more than one employee can be assigned to an office. In how many ways can the company assign 3 employees to 2 different offices? 5 6 7 8 9 要是计算答案是2的3次方,答案为8。但是我理解 3 employees 是没区分的啊!所以情况小于八种。请老师解答。

解答:

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阅读3474
解答: sysadmin老师

提问:

数学,排列,说房间可为空一个房间可容超过一人,问有几种方法将3人放入2房间?,我觉得可用C3/2来解,结果是6

解答:

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阅读3459
解答: sysadmin老师

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