Explanation: First, we will need to convert the minutes to seconds. 5 minutes = 5 * 60 = 300 seconds
Now, we know that she can run 1/3 of a lap in 40 seconds. To know the number of laps that she can run in 300 seconds, all we have to do is cross multiplication as follows: 40 seconds .................> 1/3 laps 300 seconds ................> ?? laps number of laps = (300 * 1/3) / 40 number of laps = (100) / 40 number of laps = 5/2 = 2.5 laps
