Question

Two pipes X and Y can fill a cistern in 21 hours and 24 hours, respectively. The pipes are opened simultaneously and it is found that due to a leakage in the bottom it takes 48 minutes more to fill the cistern. When the cistern is full, in how much time will the leak empty it if no pipe is open during that time?

• A. 168 hours
• B. 120 hours
• C. 130 hours
• D. 144 hours

Answer 1

Answer:

A. 168 hours

168 hours