20千克苹果与30千克梨共计132元,2千克苹果的价钱与2.5千克梨的价钱相等,每千克苹果和梨各多少元?
人气:135 ℃ 时间:2019-08-19 16:48:45
解答
132÷10÷(2.5+30÷10)
=13.2÷5.5
=2.4(元)
2.5×2.4÷2
=6÷2
=3(元)
答:每千克苹果3元,梨2.4元.
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