甲乙两商店中某种商品的定价相同
- 时间:2020-06-19 15:24:28
- 分类:数学世界
- 阅读:89 次
甲乙两商店中某种商品的定价相同。甲商店按定价销售这种商品,销售额是7200元;乙商店按定价的八折销售,比甲商店多售出15件,销售额与甲商店相同。则甲商店售出多少件这种商品?
数学题解答:一、用算术解是:7200×(1-80%)=1440(元) 乙商店的单价:1440÷15=96(元) 定价:96÷80%=120(元) 7200÷120=60(件)
二、用方程解(由:gzbzluojie提供手写解题方案)
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