神马作文网英文排列组合的问题!答对加赏!
来源：学生作业帮 编辑：神马作文网作业帮 分类：英语作业 时间：2024/11/13 13:02:59
英文排列组合的问题!答对加赏!
原题英文 试着翻了- -不过不确定是不是完全的严谨
1.Two fourteen-member basketball teams play a game.After the game,each of the members of the winning team shakes hands once with each member of both teams.How many handshakes take place?
2个篮球队比赛,每队14人.结束后,赢队的每个队员要与对方队的队员握手一次(这里不确定 题目中的both teams).会有多少次握手发生?
2.An automobile dealer is offering four models of a particular car.On each model the customer may choose cloth or leather seats,each available in three colors,automatic or manual transmission,and a CD player or a cassette player.The car can be ordered in any one of eight exterior colors.How many different cars can be ordered?
这个 我发现我翻了可能会误导...于是..
答对了+赏!
不好意思我不是让你们翻译- -我是让你们算答案谢谢- -
flycarter123同学!你的第二题答对了!但是第一题那个算法,我之前就是那么算的,但是不是那个答案!所以....应该有另外的方法呢
原题英文 试着翻了- -不过不确定是不是完全的严谨
1.Two fourteen-member basketball teams play a game.After the game,each of the members of the winning team shakes hands once with each member of both teams.How many handshakes take place?
2个篮球队比赛,每队14人.结束后,赢队的每个队员要与对方队的队员握手一次(这里不确定 题目中的both teams).会有多少次握手发生?
2.An automobile dealer is offering four models of a particular car.On each model the customer may choose cloth or leather seats,each available in three colors,automatic or manual transmission,and a CD player or a cassette player.The car can be ordered in any one of eight exterior colors.How many different cars can be ordered?
这个 我发现我翻了可能会误导...于是..
答对了+赏!
不好意思我不是让你们翻译- -我是让你们算答案谢谢- -
flycarter123同学!你的第二题答对了!但是第一题那个算法,我之前就是那么算的,但是不是那个答案!所以....应该有另外的方法呢
这分成两部分,赢方球员与输方球员握手,赢方球员之间握手.前者就是14*14=196,后者是C14,2,就是14*13/2=91.因为赢方与输方握手是不会重复计算的,所以直接乘.而赢方球员之间握手则会发生重复计算,那么握手次数就等于将这14名球员进行任意配对的次数.
首先四种车型,4；两种座椅,三种颜色,两种传送方式,两种播放器,2*3*2*2=24；车可以有8种外观颜色,8；所以总共有4*24*8=768种
首先四种车型,4；两种座椅,三种颜色,两种传送方式,两种播放器,2*3*2*2=24；车可以有8种外观颜色,8；所以总共有4*24*8=768种