Question

a wheel has a radius of 28cm.how many revolutions will it make to travel 704 m?

Answer 1

Solution:-
Radius of the wheel = 28 cm
So, circumference of wheel = 2πr
= 2*22/7*28
Circumference of wheel = 176 cm
Total distance is to be covered = 704 m = 70400 cm
To cover a distance of 70400 cm, the number of revolutions the wheel will make = Total distance/Circumference
= 70400/176
Total revolutions = 400
Answer.

Answer 2

Radius= 28 cm
Circumference= 2λr
= 2 x 22/7 x 28
= 176 cm

Number of revolution = 70400 cm/ 176 cm
= 400