In one revolution of the wheel, the car travels a distance equal to the circumference of the wheel.
Given diameter of the wheel of a car = 98 cm
Circumference of the wheel of the car = π d
= 227 x 98
= 308 cm
The distance travelled by the car in one revolution = 308 cm
Total distance travelled by the car = 6160 m = 616000 cm
Therefore number of revolution = total distance travelled by the car/ distance travelled by the car in one hour
Number of revolution = 616000/308 = 2000