46个人吃了100个馒头成人和小孩各有多少人

  • 时间:2020-05-31 15:41:53
  • 分类:数学世界
  • 阅读:87 次

六年级数学群“伊萝小沫”同学请教一道“46个人吃了100个馒头”的鸡兔同笼问题:46个人吃了100个馒头。成人每人吃四个,小孩每两人吃一个。成人和小孩各有多少人?

数学题解答:这是一道属于鸡兔同笼类型的数学问题,“小孩子每两人吃一个”可以想成“每人吃半个”,即1/2个。这样就好解答了,这里使用了假设法

假设全是成年人,一共要吃:46×4=184(个)

实际只吃了100个,少吃了:184-100=84(个)

把成年人换成小孩子,每换一次要少吃:4-1/2=3又1/2(个)

要换多少次:84÷3又1/2=24(次),这就是小孩子的人数。

成年人有:46-24=22(位)

推荐阅读:
8 WordPress Plugins for Better User Experience  6 Eye-Opening Tips for Measuring and Improving the Impact of You  Should a Professional Blog Be Funny?  How to Perform a Meaningful Content Audit of Your Blog Section  Ways To Increase Your Website Authority  5 Steps on How to Do Blogging on the Side  5 Technical Tips to Keep Your Blog Performance Flawless  Read This Before You Buy a Premium WordPress Theme  5 Trust Indicators And How To Use Them To Grow Your Blog  How to Merge k Sorted Lists using Recursive Divide and Conquer A 
评论列表
添加评论