Question

At 9:30 AM but started feeling a 3500-gallon pond. At 12:30 PM he had filled 2100 gallons. At what time will the pond before?

Answer 1

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 =
`3 \ hrs`

So, 1 gallon can be filled in time =
`(3)/(2100) \hrs`

Hence, 3500 gallons can be filled in time =
`(3)/(2100)*3500`

Hence, 3500 gallons can be filled in time =
`5 \ hrs`

Means it will take 5 hrs to fill the pond.

So after 5 hrs, time will be :
`9:30 AM + 5 \ hrs`

The time will be :
`2:30 \ PM` : Answer

Hope it will help :)