Question

The diameter of the wheel is 70 cm. How many resolution will it make to travel 66 km

Answer 1

radius of wheel =70/2,cancelation so, radius=35
perimeter of wheel =2πr
=2×22/7×35 cancelation
=2×22×5
=220
km into cm , 1km =1000m ,1m=100cm
66km=66000m,66000m=6600000cm
no/. of revolution = 6600000÷220
=30000 revolution