+0  
 
0
1
44
1
avatar

A train travels 200 km in the same time that a plane covers 700 km. If the speed of the plane is 20 km per hr less than 4 times the speed of the train, find both speeds.

 Sep 17, 2020
 #1
avatar
0

Speed of train = S
Speed of plane =4S - 20

 

200/S =700 / (4S - 20), solve for S


S = 40 km/h - train's speed
40*4 - 20 = 140 km/h - plane's speed.

 Sep 17, 2020

55 Online Users

avatar