A pipe can fill a tank in 30 hours. Due to a leakage at the bottom, it is filled in 50 hours. How much time will the leakage take to empty the filled tank?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 75 hours.
The pipe's rate without leakage = 1/30 of the tank per hour.
The combined rate of the pipe and the leakage = 1/50 of the tank per hour.
The leakage rate is 1/30 - 1/50 = 1/75 of the tank per hour.
The time it takes for the leakage to empty the tank is 75 hours.