Question

there is a tank in which a exhaust pipe of 3 inch is fit and on another corner there is a 4inch water pipe which fill the tank in 3hours .and the exhaust pipe blank the tank in 4hours. if both of them is open in one time. what will be the time taken to fill up the tank

Answer 1

Hi there✋✋,

Here's your answer:-

Just leave the inches of the pipes, you can now easily evaluate them.

Time taken by water pipe to fill tank = 3 hr

When time = 1 hr, tank filled = 1/3

Time taken by exhaust pipe to empty the tank = 4hr

So, tank emptied in 1 hr = 1/4

Total tank filled in 1 hr when both pipes are used =

1/3-1/4 = (4-3)/12 = 1/12

So, When filled portion = 1/12, time taken = 1 hr

When filled portion = 1, time taken = 12 hr.


So, if both pipes are used, it will take 12 hrs to fill the tank.

HOPE IT HELPS ☺

PLEASE MARK BRAINLIEST