数学题:如何只用这2个水壶从池塘里取得3升的水

  • 时间:2020-05-12 13:38:15
  • 分类:数学世界
  • 阅读:121 次

数学题:假设有一个池塘,里面有无穷多的水。现有2个空水壶,容积分别为5升和6升。问题是:如何只用这2个水壶从池塘里取得3升的水。

数学题解答

先装满5升的水壶,然后倒到6升水壶里,再装满5升水壶,再往6升水壶倒满,这样5升水壶就剩下四升水。

然后把6升水壶里的水倒掉,把5升水壶里的四升水倒进6升水壶里,然后再装满5升水壶,再倒入6升水壶。

这样因为6升水壶原先有四升水,现在就只能倒入2升。那5升水壶就只剩下3升水了。

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