菜的做法一共有几种可能

  • 时间:2020-06-13 17:16:40
  • 分类:数学世界
  • 阅读:138 次

菜的做法一共有几种可能?问题如下:一共有9个萝卜,两个萝卜可以做一小盘菜,三个萝卜可以做一大盘菜,菜的做法一共有几种可能?

有同学认为,菜的做法一共有两种可能:1、一小盘菜;2、一大盘菜。但怎么感觉有点像脑筋急转弯啊?所以ziyo认为答案应该是:把9个萝卜用完,应该有2种可能:1、三大盘菜(3×3=9);2、三小盘菜,再加一大盘菜(2×3+3=9)。

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