Question

A water tank is connected with 3 pipes,two inlet and one outlet. Inlet pipe A can fill the tank in 30 min. Inlet pipe B can fill it in 40 min. outlet pipe C can empty it in 60 min. If all the 3 pipes are opened together, how long will it take to fill the tank ?

Answer 1

Answer:

24 min

Step-by-step explanation:

(1/30+1/40)-1/60

7/120-1/60

5/120

1/24

24 mins

Answer 2

Answer:

First follow me then I will tell the answer