Question

An inlet tap can fill the tank in 20 hours and an outlet tap can empty the full tank in 25 hours. If both the inlet and outlet taps are opened together, in how many hours the empty tank will be filled?

Answer 1

Answer:

MARK AS BRAINLIEST

Step-by-step explanation:

Efficiency of inlet pipe = 1/10 th part of tank per hr

Efficiency of outlet pipe = - 1/20 th part of tank per hr

If both the pipes are operated simultaneously the effective efficiency = 1/10 - 1/20 = 1/20 th part of tank per hr

The tank will be filled in 20 hrs

If started at 6•30 a m it will fill the tank at 2•30 a m

Answer 2

Answer:

So If all the pipes are opened at the same time they will take 5/2 hours to fill the tank.