1.32x2000x(1-11/12)
=2640x1/12
=220kg
答 节约220kg
某车间原计划生产2000个零件,每件需要钢材1.32千克.后因技术改革降低到原来的十二分之十一,共节约钢材多少千克
某车间原计划生产2000个零件,每件需要钢材1.32千克.后因技术改革降低到原来的十二分之十一,共节约钢材多少千克
数学人气:576 ℃时间:2019-09-16 23:14:11
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