Circle diameter and revolution

Question

A wheel of a compact car has a 25-inch diameter. The wheel of a pick up truck has 31-inch diameter. To the nearest inch, how much further does the pick up truck wheel travel in one revolution than the compact car wheel?

Answer 1

You would calculate the circumference for each wheel.

C=Dπ

For the car C=25π=78.5398 inches

For the truck C=31π=97.38932 inches

Subtracting those two you would get 18.85 inches is how much further the truck goes per revolution