国际顶尖MBA申请交流平台--TOPWAY MBA

标题: GWD7-25 [打印本页]

作者: moderation 时间: 2005-6-2 06:11 标题: GWD7-25

Q25:

The buyer of a new home must choose 2 of 4 types of flooring and 2 of 6 paint colors. How many different combinations of type of flooring and paint color are available to the home buyer?

A. 4

B. 24

C. 48

D. 90

E. 96Answer: D

就只要C(2,4)*C(2,6)就可以了么？我怎么觉得还要乘4，因为这四种选出来后两两得再搭配

作者: thinkers 时间: 2005-6-2 15:08

不用了

作者: periodic 时间: 2005-6-3 06:15

up![em03]

作者: moderation 时间: 2005-6-4 06:35

thanks !![em01]

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