Answer:
Step-by-step explanation:
Alright, lets get started.
At 9:30 AM , he started filling the pond and at 12:30 PM means, after 3 hrs, he had filled 2100 gallons.
Means,
2100 gallons can be filled in time = [tex]3 \ hrs[/tex]
So, 1 gallon can be filled in time = [tex]\frac{3}{2100} \hrs[/tex]
Hence, 3500 gallons can be filled in time = [tex]\frac{3}{2100}*3500[/tex]
Hence, 3500 gallons can be filled in time = [tex]5 \ hrs[/tex]
Means it will take 5 hrs to fill the pond.
So after 5 hrs, time will be : [tex]9:30 AM + 5 \ hrs[/tex]
The time will be : [tex]2:30 \ PM[/tex] : Answer
Hope it will help :)