30×10÷(15-10)×15
=30×10÷5×15
=300÷5×15
=60×15
=900(个)
答:这批零件有900个.
加工一批零件,原计划15天完成,实际每天多加工30个,结果只用10天就完成任务,这批零件有多少个?
加工一批零件,原计划15天完成,实际每天多加工30个,结果只用10天就完成任务,这批零件有多少个?
数学人气:331 ℃时间:2020-04-20 09:01:13
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