Pipes A and B are emptying pipes and can empty a tank in 6 hours and 16 hours respectively. C is a filling pipe. All three pipes were opened together. They took 80 minutes to empty (5/18)th of the tank. Pipe C alone can fill the tank in:
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 48 hours
Let the volume of the tank = v
speed of pipe A = v/6
speed of pipe B = v/16
let the speed of pipe C = v/x (where x is the time taken by pipe C to fill the tank)
As given,
