Answer:
Cir of front wheel = pi x d = 3.14 x 12 = 37.7 in.
Cir of rear wheel = pi x d =3.14 x 18 = 56.52
Revolutions of front Tire = 300 / 37.7 = 7. 96 revolutions
Revolutions of rear Tire = 300 / 56.5 = 5.31 revolutions
Revolutions Front - Revolutions Rear = 7.96 -56.31 = 2.7 revolutions more
Explanation: