数学题:有一杯糖水,糖与水的重量比是1:20
- 时间:2020-04-29 11:52:54
- 分类:数学世界
- 阅读:147 次
数学题:有一杯糖水,糖与水的重量比是1:20,如果再加2克糖,这杯水重44克,糖水中水的重量是多少?
数学题解答:这是一道关于按比例分配的数学问题。已知“糖与水的重量比是1:20”,先用“如果再加2克糖,这杯水重44克”算出未加2克糖时的糖水重量,然后求出每份的重量,就好算了。
未加2克糖时的糖水重量:44-2=42(克)
水的重量:42÷(1+20)×20=40(克)
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