运输队要运2000件玻璃器皿
- 时间:2020-05-27 19:09:25
- 分类:数学世界
- 阅读:127 次
运输队要运2000件玻璃器皿,按合同规定,完好无损运到的每件付运输费1.2元,如有损坏,每件没有运输费外,还要赔偿6.7元,最后运输队得到2005元,运输中损坏了多少件玻璃器皿?
数学题解答:一、假设法。假设一件也没有损坏。那么可得到1.2×2000=2400(元),实际只得了2005元,相差395元。综合算式如下:
2000×1.2-2005)÷(6.7+1.2)=50(件)
二、方程法:设运输中损坏了X件。
2000×1.2-(6.7+1.2)X=2005
2400-7.9X=2005
X=50
答:运输中损坏了50件玻璃器皿。
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