修路隊(duì)修一條路,已經(jīng)修了800米,這時(shí)沒(méi)修的比這條路的8分之5少140米,這條路全長(zhǎng)多少米?
修路隊(duì)修一條路,已經(jīng)修了800米,這時(shí)沒(méi)修的比這條路的8分之5少140米,這條路全長(zhǎng)多少米?
數(shù)學(xué)人氣:658 ℃時(shí)間:2019-08-21 08:04:37
優(yōu)質(zhì)解答
(800-140)÷(1-5/8)=660÷3/8=1760米
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