2100÷42%=2100÷0.42=5000(千克),
答:需要油菜籽5000千克.
油菜籽的出油率是42%,一个榨油厂榨出菜籽油2100千克,需要多少千克的油菜籽?
油菜籽的出油率是42%,一个榨油厂榨出菜籽油2100千克,需要多少千克的油菜籽?
数学人气:552 ℃时间:2019-11-25 00:03:11
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