GWD数学，题目看不懂哦

wodexuefei

A certain club has 20 members.  What is the ratio of the member 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

chenzheng

答案是选E吗？

dongsoong

问 组合(20 选 5) 比 组合(20 选 4)

I guess that it should be "the number of 5-member ...." in the first line of the problem.


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