Question 809034: a journey by bus takes 38 minutes at 55 kph. How fast must a car go to complete the same journey in 30 minutes Answer by Cromlix(4381) (Show Source):
You can put this solution on YOUR website! ...bus....
Distance = Speed * Time
38mins = 0.63 of an hour
Distance = 55kph * 0.63hrs
Distance = 34.83km
....car......
Speed = Distance/time
30mins = 0.5hours
Speed = 34.83/0.5
Speed = 69.6kph.
Hope this helps.
:-)