Answer:
if he can swim 10 laps in 23 mins so how long he can swim the 15 laps?
you can say:
10/23 = 15/?
so
that is your answer and have a nice day!!!!!!
23 minutes = 10 laps
15 minutes = x laps
(15*10)/23= 150/10 = 15 laps
I hope that's help !
9.5m questions
12.2m answers