300×(15-3)÷15,
=300×12÷15,
=240(米);
答:原计划每天修240米.
修一条路,原计划15天完成,实际每天修300米,结果提前3天完成,原计划每天修多少米?
修一条路,原计划15天完成,实际每天修300米,结果提前3天完成,原计划每天修多少米?
数学人气:885 ℃时间:2019-10-11 09:26:50
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