Question

There is a tank, and two pipes a and

b. A can fill tank in25 min and b can empty the tank in 20 min. If both thepipes are opened at same time. How much timerequired for the tank to be filled?

Answer 1

what if b can empty the tank in 20 minutes more faster than a so the water we will fill all water will came out fron the tank nothing will inhale in the tank. soory your's question was wrong