Question

A pump will pump 125 gallons per minute. How long will it take to empty a 12,000 gallon tank?

a. 1 hour 36 minutes
b. 1 hour 46 minutes
c. 2 hours 39 minutes
d. 4 hr 20 minutes

Answer 1

This is 12,000 / 125 minutes = 96 minutes

Answer is a. 1 hour 36 minutes.

Answer 2

Answer: The correct option is (a) 1 hour 36 minutes.

Step-by-step explanation: Given that a pump will pump 125 gallons per minute.

We are to find the time that the pump will take to empty a 12000 gallon tank.

We have

Time taken by the pump to empty 125 gallons = 1 minute.

So, the time taken by the pump to empty 1 gallon will be

`(1)/(125)~\textup{minute}.`

Therefore, time taken by the pump to empty 12000 gallons is given by

`(1)/(125)*12000=96~\textup{minute}.`

Now,

60 minutes = 1 hour.

So, 1 minute will be
`(1)/(60)~\textup{hour}.`

Therefore, 96 minute will be equal to

`(1)/(60)*96=1(36)/(60)=1~\textup{hour }36~\textup{minutes}.`

Thus, the pump will take 1 hour 36 minutes to empty 12000 gallon tank.

Option (a) is CORRECT.