遇店加一半,遇花喝一斗
- 时间:2020-05-16 11:04:24
- 分类:数学世界
- 阅读:160 次
数学题:李白提壶去打酒,遇店加一倍,遇花喝一斗,三次遇店,三次遇花,喝完杯中酒,请问壶中原有都少酒?
数学题解答:
用方程解: 设:壶中原有X斗酒。
一遇店和花后,壶中酒为:2X-1;
二遇店和花后,壶中酒为:2(2X-1)-1;
三遇店和花后,壶中酒为:2[2(2X-1)-1]-1=0
求出X即可。
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