标题: 請問PP1 PS-43 [打印本页] 作者: sangchangtw 时间: 2009-10-4 15:21 标题: 請問PP1 PS-43 A certain company employs 6 senior officers and 4 junior officers. If a committee is to be created that is made up of 3 senior officers and 1 junior officer. how many different committees are possible? (a) 8 (b)24 (c)58 (d)80 (e)210
I calculate by C(6,3)XC(4,1)=60X4=240... can somebody help me to solve this quiz...>< 作者: sherry树丛 时间: 2009-10-4 17:03
选D阿，你计算错了作者: sangchangtw 时间: 2009-10-4 17:34
我剛剛才發現..式子ˋ沒錯 不過計算錯了...