3.巧解分数和、差倍、工程问题
3.巧解分数和、差倍、工程问题一、认真审题,填一填。(每空3分,共33分)1.运一批货物,甲单独运要6小时完成,乙单独运要9小时完成。(1)甲单独运,每小时运这批货物的( )。(2)乙单独运,每小时运这批货物的( )。(3)甲、乙合运,每小时运这批货物的( )。(4)甲、乙合运,( )小时可以运完。2.一套桌椅共350元,椅子的价格是桌子的,椅子( )元,桌子()元。3.某仓库要运走一批水果,先运了4车,共运走了这批水果的。平均每车运走这批水果的( ),剩下的水果还要( )车才能运完。4.师傅加工一批零件要6小时,徒弟加工这批零件要10小时,两人合作,( )小时能完成这批零件。...
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