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標題:

數學題 combination

發問:

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 committess are possible? a.120 b. 720 c. 1060 d. 1520 e. 1980

最佳解答:

11C2 x 9C2 = (11 x 10)/2 x (9 x 8)/2 = 55 x 36 = 1980 (e)

其他解答:

你講英文,我唔明你講咩。 答案應該是a.120 希望幫到你們！6A560DB68EC65D60
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