Sixty-eight people are sitting in 20 cars and each car contains at most 4 people.What is the maximum possible number of

Sixty-eight people are sitting in 20 cars and each car contains at most 4 people.What is the maximum possible number of cars that could contain exactly 1 of the 68 people?
我的解題步驟是:
設(shè)x個(gè)人一個(gè)人一輛車(chē),Y個(gè)人4個(gè)人一輛車(chē).
x+y=68
x+y/4=20
二元一次方程的答案是固定的啊.X=4,Y=64
……………………………………………………
可是題目為什么要問(wèn)maximum X 是不是我理解錯(cuò)了呢?

英語(yǔ)人氣：112 ℃時(shí)間：2020-05-11 20:37:21

優(yōu)質(zhì)解答

Y個(gè)人4個(gè)人一輛車(chē)
這個(gè)假設(shè)有待商榷.
因?yàn)橐部梢允?人一輛車(chē),2個(gè)人一輛車(chē).但這樣,一個(gè)人一輛車(chē)的答案就會(huì)小于4.
你設(shè)其他的車(chē)都是4人的,已經(jīng)是為了求出maximum possible number 了.你的過(guò)程是對(duì)的,答案也是對(duì)的.
能明白我的解釋么.

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Sixty-eight people are sitting in 20 cars and each car contains at most 4 people.What is the maximum possible number of

精品偷拍一区二区三区,亚洲精品永久码,亚洲综合日韩精品欧美国产,亚洲国产日韩a在线亚洲