A cistern is normally filled in 8hours but takes two hours longyer to fill because of a leak in its bottom.If the cistern is full,the leak will empty it in?

A cistern is normally filled in 8hours but takes two hours longyer

1.	A cistern is normally filled in 8hours but takes two hours longyer to fill because of a leak in its bottom.If the cistern is full,the leak will empty it in?
A.	20hours
B.	30hours
C.	40hours
D.	50hours
Answer» D. 50hours

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A cistern is normally filled in 8hours but takes two hours longyer to fill because of a leak in its bottom.If the cistern is full,the leak will empty it in?

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