Question

A bus has wheels of diameter 0.7m.Howmany times must a wheel of the bus rotate for covering the distance of 44km?

Answer 1

Circumference of wheel = 2πr = 2*22*0.7/7

                                        = 4.4 m

Distance to be travelled = 44000 m

Hence, no. of revolutions = 44000/4.4 = 10000 m