Question

a water tank has two inlets and one outlet. inlet 1 can fill the tank alone in 40 minutes and the inlet 2 can fill the tank alone in 20 minutes. the outlet can empty the tank in 30 minutes. if the tank is to be filled while both the inlets and the outlet are open. how long will it take for the tank to fill? justify your answers​

Answer 1

Answer:

24 min is answer

Step-by-step explanation:

With explanation

Answer 2

Answer:

Step-by-step explanation:

inlet=20min=1/20 (A let)

outlet=40min=1/40 (B let)

hence, the work done by a&b

=a+b=1/20+(-1/40)=1/40

hence tank will get filled in 40 minutes.