买四张桌子、9把椅子共用252元,1张桌子和3把椅子的价钱正好相等,桌、椅的单价各多少元?
人气:338 ℃ 时间:2020-05-22 16:57:02
解答
9÷3=3(张),
252÷(4+3)
=252÷7
=36(元),
36÷3=12(元),
答:桌、椅的单价各是36元,12元.
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