船速x,水速y ,
(x-y)×18=360
(x+y)×10=360
某船逆水航行于长360km的AB码头,用去18h,当这艘船沿原路返回时,用去了10h,求这条船在静水中航行的速度及
某船逆水航行于长360km的AB码头,用去18h,当这艘船沿原路返回时,用去了10h,求这条船在静水中航行的速度及
数学人气:272 ℃时间:2020-05-20 11:47:06
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