100+ Pipes and Cisterns Aptitude Questions and Answers Pdf - 2

Question: 6

In 1 minute, $${3} / {7}$$ of a bucket is filled. The rest of the bucket can be filled in

(A) $${4} / {3}$$ minutes

(B) $${7} / {3}$$ minutes

(C) $${7} / {4}$$ minutes

(D) None of these

Question: 7

Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is

(A) 60 gallons

(B) 80 gallons

(C) 100 gallons

(D) 120 gallons

Question: 8

A pump can fill a tank with water in 2 hours. Because of a leak, it took $$2{1} / {3}$$ hours to fill the tank. The leak can drain all the water of the tank in

(A) 7 hrs

(B) 8 hrs

(C) 14 hrs

(D) 20 hrs

Question: 9

A leak in the bottom of a tank can empty the full tank in 8 hours. An inlet pipe fills water at the rate of 6 litres a minute. When the tank is full, the inlet is opened and due to the leak, the tank is empty in 12 hours. How many litres does the cistern hold?

(A) 7580

(B) 7960

(C) 8290

(D) 8640

Question: 10

Pipe A can fill a tank in 5 hours, pipe B in 10 hours and pipe C in 30 hours. If all the pipes are open, in how many hours will the tank be filled?

(A) 2

(B) 3

(C) 4

(D) 5