Answer:
11.25 minutes
Step-by-step explanation:
The capacity of the swimming pool is 105 gallons of water.
There are currently 15 gallons of water
∴I need to fill (105-15) = 90 gallons of water
Now,
8 gallons of water are filled within 1 minute
∴1 gallon of water  will be filled within = 1/8 minute
∴90 gallons of water  will be filled within = 90/8 minutes
                                   =11.25 minutes
