Respuesta :

pegah
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 ? is the answer:
15*23/10 = 34.5 mins :)))
i hope this is helpful
have a nice day 
Zephyr891
34.5
because 23 / 10 =2.3 and 2.3*15=34.5

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