Question

A pipe can fill a cistern in 9 hours. Due to a leak in its bottom, the cistern fills up in
10 hours. If the cistern is full, in how much time will it be emptied by the leak?​

Answer 1

Answer:

A leaked pipe fills less part of cistern in 1 hour as compared to good pipe.so, we can get time in which cistern will be emptied by leaked pipe by the reciprocal of their difference. Therefore, Time take by leaked pipe to empty the full cistern=90 hrs.

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Answer 2

Answer:

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