Question

Sebastian swims laps every day in the community swimming pool. He swam 45 minutes each day, 5 days a week for 12 weeks. In that time, he swam 1,800 laps. What was his average rate in laps per hour?

Answer 1

The average rate was 40 laps per hour

Explanation:

First we want to figure out how many minutes he swam in one week

45 min a day for 5 days
`45*5=225`

So he swims 225 minutes every week, for 12 weeks
`225*12=2700`

Now we want to convert minutes to hours
`2700/60=45`

So it took him 45 hours to swim 1800 laps
Laps per hour signifies division, laps over hours

`1800/45=40`

40 laps per hour