甲乙丙进行60米比赛
- 时间:2020-05-16 19:48:28
- 分类:数学世界
- 阅读:68 次
甲乙丙进行60米比赛,同时起跑,甲到终点时,乙离终点还有10米,丙离终点还有20米。乙到终点时,丙离终点还有多少米?
数学题解答:“甲到终点时,乙离终点还有10米”说明当甲行60米时,乙行了50米(60-10=50),丙行了40米(60-20=40)。甲乙丙三人的速度比是6:5:4。
当乙到终点时,乙行完了60米,此时丙行了:60÷5×4=48(米)。
所以,乙到终点时,丙离终点还有12米。60-48=12(米)。
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