Question

The circumference of a wheel is 90 cm.if it travels at 45 kmph for 2 hours 30 minutes ,find the number of revolutions made by the wheel.

Answer 1

Distance traveled=45*2.5
=112.5km
112.5*10^5 cm
No of revolutions made by wheel=125000

Answer 2

distance =  11250000 cm 
1 round cover 90 cm
  
                          =        11250000/90
                            = 125000 revoloution