Question

The radius of wheel of a car is 56 cm how much distance will it covers in 1200 complete revolution?

Answer 1

Radius of wheel (r) = 56 cm

So, Circumference of Wheel = 2πr
                                              = 2*22/7*56
                                              = 44*8

So, Distance Travelled in 1200 revolutions = 1200*44*8
                                                                    = 422400 cm
                                                                    = 4.224 Km

Answer 2

r=56 cm

distance covered in one revolution= circumference of wheel

=>distance covered= 2x22/7x56
                                 =352 cm

1 revolution-> 352 cm
1200 revolutions-> ?

distance covered in 1200 revolutions= 352x1200
                                                           =422400 cm