每台织布机每小时织布120/3/4=10米
5台织布机每小时织布10*5=50米
5台织布机织布150米需要150/50=3小时
4台织布机3小时织布120米,照这样计算,5台织布机织布150米需要多少小时
4台织布机3小时织布120米,照这样计算,5台织布机织布150米需要多少小时
数学人气：239 ℃时间：2020-01-31 21:13:38
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