每人应付水费为:19.2 \(6 + 4 + 2 ) = 1.2元
王家应付水费为:4 * 1.2 = 4.8 元
张、王、李三家合用一个水表,张家有6口人,王家有4口人,李家有2口人,总共付自来水费19.2元,按人口分摊
张、王、李三家合用一个水表,张家有6口人,王家有4口人,李家有2口人,总共付自来水费19.2元,按人口分摊
王家要付水费多少元?
王家要付水费多少元?
数学人气:494 ℃时间:2019-10-27 02:46:25
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