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

20 hrs

28 hrs

36 hrs

40 hrs

Correct Answer: 20 hrs

Explanation:

1/8 - 1/x = 1/10

=> x = 40 hrs

Question

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

Accepted Answer

1/8 - 1/x = 1/10 => x = 40 hrs

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

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