最少要付多少元的租金
- 时间:2020-05-27 19:09:25
- 分类:数学世界
- 阅读:123 次
“海王星”提问:各位老师好!我女儿这道题该怎么做?题目:四(1)班48名师生去划船。有两种船可以租,小船:每条可坐3人,租金8元/小时;大船:每条可坐5人,租金12元/小时。他们最少要付多少元的租金?
数学题解答:尽量用大船,因为大船平均每人花:12÷5=2.4元,而小船平均每人要花:8÷3≈2.67元,可以看出大船更实惠。
再看48个人里,5个人为一组,可以分多少组?就需要几条大船?
48÷5=9(条)……3(人)
所以租9条大船,剩下3人再为他们租一条小船就可以了
租金是:12×9+8=116(元)
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