Answer:
32minutes
Step-by-step explanation:
Assuming the person doing the laps is a she,
She does 15laps in 24 minutes
Then if she is to do 1lap, how many minutes would she take?
15 laps - 24 minutes
1 lap - (24| 15) minutes
Meaning that for the 20 laps she will take...
1 lap - 24| 15 minutes
20 laps - 24| 15×20
- 32 minutes
hope that this is helpful.