55÷(1+25%),
=55÷1.25,
=44(万吨);
答:去年产钢44万吨.
钢厂今年计划产钢55万吨,比去年增产25%,去年产钢多少万吨?
钢厂今年计划产钢55万吨,比去年增产25%,去年产钢多少万吨?
数学人气:492 ℃时间:2019-08-20 05:49:13
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