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<…

Question

asked May 18, 2018 147k views

2 Answers

Coltoneakins · Answer 1 · 2018-05-24T02:34:38+0000

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.