Question

甲隊(duì)修路150m與乙隊(duì)修路100m所用天數(shù)相同，已知甲隊(duì)比乙隊(duì)每天多修10m，設(shè)甲隊(duì)每天修路xm．依題意，下面所列方程正確的是（　�。�

• A、

  150

  x

  =

  100

  x+10

• B、

  150

  x+10

  =

  100

  x

• C、

  150

  x-10

  =

  100

  x

• D、

  150

  x

  =

  100

  x-10

Answer 1

考點(diǎn)：由實(shí)際問(wèn)題抽象出分式方程

專(zhuān)題：

分析：設(shè)甲隊(duì)每天修路xm，乙隊(duì)每天修路（x-10）m，根據(jù)甲隊(duì)修路150m與乙隊(duì)修路100m所用天數(shù)相同，列方程即可．

解答：解：設(shè)甲隊(duì)每天修路xm，乙隊(duì)每天修路（x-10）m，
由題意得

150

x

=

100

x-10

．
故選D．

點(diǎn)評(píng)：本題考查了由實(shí)際問(wèn)題抽象出分式方程，解答本題的關(guān)鍵是讀懂題意，設(shè)出未知數(shù)，找出合適的等量關(guān)系，列方程．