[問題]GWD - 2-GMAT-Q12

[clare]

Q12:
[b]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[/b]

Who can teach me how the anwer is E? Thanks a lot.

[huacy]

11 個女的和 9 個男的中要任選 2 男 2 女
所以總共的組合數是 C11取2 * C9取2 = (11*10)/2 * (9*8)/2 = 1980