simple maths question?

2016-02-27 3:07 am
there are 13 boys and 17 girls in a class
if a team of 32 girls and 2 boys are selected from the class to participate the voluntary services ,how many different teams can be formed?
答案係用C 利計
但點解唔可以用P利計

thank u very much.
更新1:

it should be 3 girls

回答 (1)

2016-02-27 3:41 am
✔ 最佳答案
(17x16x15/3!)x(13x12/2!)=53040
女的組合數 x 男的組合數


收錄日期: 2021-04-18 14:36:52
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