如果列方程的話可以用以下方案:
設(shè)乙隊(duì)每天修了X米,那么甲隊(duì)每天修了X+5,
(X+X+5)×8=472
解得X=27(米)
那么甲隊(duì)就是27+5=32米 32×8=256米
乙隊(duì)修了:27×8=216米
答:甲隊(duì)修了256米,乙隊(duì)修了216米.
如果不設(shè)的話就是:
乙隊(duì)隊(duì)修了:(472-5×8)÷2=216米
甲隊(duì)就是:472-216=256米
甲、乙兩個(gè)工程隊(duì)合修一條長(zhǎng)472米得公路,從兩頭開始修,8天修完.甲隊(duì)比乙隊(duì)每天多修5米,問兩隊(duì)合修了多少米?^-^
甲、乙兩個(gè)工程隊(duì)合修一條長(zhǎng)472米得公路,從兩頭開始修,8天修完.甲隊(duì)比乙隊(duì)每天多修5米,問兩隊(duì)合修了多少米?^-^
數(shù)學(xué)人氣:153 ℃時(shí)間:2020-06-24 07:57:35
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