[求助]一道没有做出的数学题（麻烦讲讲思路）谢谢谢谢谢！

wzy84118

A certain club has 20 members.  What is the ratio of the nember of 5-member committees that can be formed from the members of the club to the number of 4-member committees that can be formed from the members of the club?

 

A.    16 to 1

B.     15 to 1

C.     16 to 5

D.    15 to 6

E.     5 to 4

ellaellali

就是20个人里选5个成员的组合比上20个人里选4个成员的组合：C20(5)/C20(4)=16/5,选C

wzy84118

应该是我读题理解错误，今天就错了这道题。我的理解是错的。如果按您多说那就能做。实在是感谢！看来还是阅读理解出了问题！谢谢！