SAT OG 排列组合题The Acme Plumbing Company will send a team of 3 plumbers to work on a certain job.The company has 4 experienced plumbers and 4 trainees.If a team consists of 1 experienced plumber and 2 trainees,how many different such teams are possible?看不懂也不会做……求教
问题描述：
SAT OG 排列组合题
The Acme Plumbing Company will send a team of 3 plumbers to work on a certain job.The company has 4 experienced plumbers and 4 trainees.If a team consists of 1 experienced plumber and 2 trainees,how many different such teams are possible?
看不懂也不会做……求教
答
简单说就是一个公司要选3个工人组成一个队伍
熟练工人共有4个
新手有4个
从这8个人里选1个熟练工人和2个新手来组成这个队伍 共有多少种选法
4C1乘以4C2啊 结果是：4x6=24
加油啊