Question

A pipe can fill the tank in 15 hours. Due to leak in the bottom of the tank, it is filled in 20 hours.
If the tank is completely filled, how long will the leak take to empty the tank?​

Answer 1

Step-by-step explanation:

A pipe can fill in 9 hrs work done will be

9

1

Cistern fills up in 10 hrs if there is a leak. So work will be done in

10

1

Time taken to empty the cistern

=

9

1

−

10

1

=

90

10−9

=

90

1

It will be emptied in 90 hrs

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Answer 2

Answer: The leak takes 60 hours to empty it.

Since we have given that

Number of hours a pipe can fill a tank = 15 hours

Number of hours a pipe can fill if there is a leak in the bottom = 20 hours

Number of hours a pipe would need to empty due to leak be 'x'.

So, According to question, it becomes,

Hence, the leak takes 60 hours to empty it.

hope it helps you

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