Question

3 pipes can fill a tank in 10 miutes. The way pipe itself takes 30 minutes and the second take 25 minutes to fill the tank . In what time will the 3rd pipe full the tank?

Answer 1

Answer:

3rd pipe take 37.5 min

Step-by-step explanation:

1st pipes take 30min work done in 1 min 1/30

2nd pipe take 25min work done in 1min 1/25

3rd pipe take ?

1/10-(1/30 +1/25)

1/10-11/150

4/150

time taken = 150/4

= 37.5 min