Question

Liam sits on a merry-go-round at the local fair. He completes 12 revolutions in 4

minutes. What is the period of the ride?

Answer 1

1/3 min ( = 20 seconds)

Explanation:

The period of the ride is the time he takes to complete 1 revolution

We are given:

12 revolutions -------> takes 4 min

1 revolution ------> takes 4/12 = 1/3 min (= 20 seconds)