Q7:
There are 11 women and 9 men in a certain club. If the club is to select a committee of 2 women and 2 men, how many different such committees are possible?
A. 120
B. 720
C. 1,060
D. 1,520
E. 1,980
答案是E,我觉得是C11,2*C9,2,望各位指教
以下是引用bfghdggf在2004-12-14 11:18:00的发言:Q7:
There are 11 women and 9 men in a certain club. If the club is to select a committee of 2 women and 2 men, how many different such committees are possible?
A. 120
B. 720
C. 1,060
D. 1,520
E. 1,980
答案是E,我觉得是C11,2*C9,2,望各位指教
根据你的思路, 答案就是E呀, 是不是算错了?
以下是引用camillayan在2004-12-16 20:37:00的发言: >根据你的思路, 答案就是E呀, 是不是算错了?
欢迎光临 国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/) | Powered by Discuz! 7.2 |