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
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.
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.
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
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160226190728AA0pA9b