Question

Tap A can fill a tank in 24 hours and tap B can empty the tank in 15 hours . How long will it take to fill the empty the tank , of both of them are opened together ?

Answer 1

Answer:

Ans:-25

Step-by-step explanation:

Tap A can fill 1 tank in 24 hours

Tap A fills in 1 hour =1/24

Tap B can empty 1 tank in 15 hours.

Tap B empties in 1 hour=1/15

Both taps will fill in 1 hour =[1/24-1/15]

=1/25

=25

Hence, the tank will be filled completely in 25 hours