Question

Rahim travelled 350km in a train and 150km in a bus.The average speed of the train was 70km/h.The bus trip lasted 5hours.What is the average speed of the entire trip?

Answer 1

Average speed of whole trip = 50km/h

       working:

   S = D/T

We have to find the time of the train trip first because we don't have it.

   T = D/S

   T = 350/70

   T = 5hrs

 Average speed of whole trip:

   S = D/T

   S = 500/10

   S = 50km/h