A pump can fill a cistern in 2 hours.Due to a leak in the tank it takes 7by 3 hours to fill it. The leak can empty the full tank in .
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Answer:2 hours
Step-by-step explanation:if tank is leak so it donot need more time to get empty it can empty fast in 2 hours
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Let the capacity of tank be x litres,
It can fill in 2hrs, which means in one hour it fills (x/2) litres.
In three hours 3*(x/2)litres=(3/2)x litres.
Wasted water due to leakage,
=>(3/2)x-x=1/2x, which implies in one hour 1/2 tank water is wasted in two hours full tank water is leaked..
Therefore you’re answer is 2hours
It can fill in 2hrs, which means in one hour it fills (x/2) litres.
In three hours 3*(x/2)litres=(3/2)x litres.
Wasted water due to leakage,
=>(3/2)x-x=1/2x, which implies in one hour 1/2 tank water is wasted in two hours full tank water is leaked..
Therefore you’re answer is 2hours
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