Question

The diameter of the wheel of a unicycle is 0.68m. Mary tries to ride the unicycle and manages to go in a straight line for 40.2m before falling off. How many complete revolutions did Mary manage to cycle?

Answer 1

18 complete revolutions

Explanation:

the circumference of the wheel would equal one complete revolution

C = 2πr

C = 0.68π = 2.14

total distance divided by circumference (1 lap) will provide the answer 40.2 / 2.14 = 18.78 revolutions

18 complete revolutions