一堆煤中245吨,运走一部分后,还剩下这堆煤的3/5,还剩下多少煤?
一堆煤中245吨,运走一部分后,还剩下这堆煤的3/5,还剩下多少煤?
数学人气：965 ℃时间：2020-02-02 23:48:55
优质解答
245x3/5=147吨
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