Question

10．甲乙兩個工程隊(duì)合修一條公路，甲工程隊(duì)修了1070米，比乙工程隊(duì)修路長度的$\begin{array}{l}\frac{5}{6}\end{array}$多320米．乙工程隊(duì)修了多少米公路？（用方程解）

Answer 1

分析 設(shè)乙工程隊(duì)修了x米公路，根據(jù)等量關(guān)系：乙工程隊(duì)修路長度×$\begin{array}{l}\frac{5}{6}\end{array}$+320米=甲工程隊(duì)修了1070米，列方程解答即可．

解答 解：設(shè)乙工程隊(duì)修了x米公路．
$\begin{array}{l}\frac{5}{6}\end{array}$x+320=1070
        $\begin{array}{l}\frac{5}{6}\end{array}$x=750
          x=900，
答：乙工程隊(duì)修了900米公路．

點(diǎn)評 本題考查了列方程解應(yīng)用題，關(guān)鍵是根據(jù)等量關(guān)系：乙工程隊(duì)修路長度×$\begin{array}{l}\frac{5}{6}\end{array}$+320米=甲工程隊(duì)修了1070米，列方程．