Question

Mark's model train can go 1/3 laps around its track in 2 minutes. If it runs at the same

speed, how many laps can the train go in 9 minutes?

Answer 1

1.5 laps

Explanation:

You can use a proportion to solve this problem.

2 minutes is to 1/3 lap and 9 minutes is to x laps.

2/(1/3) = 9/x

Cross multiply:

2x = 9 * 1/3

2x = 3

x = 1.5

Answer: 1.5 laps