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Pipes and Cisterns Practice Test 1 with solutions
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© examsnet.com
Question : 21
Total: 40
A cistern which could be filled in 9 hours takes one hour more to be filled owing to a leak in its bottom. If the cistern is full, in what time will the leak empty it?
70 hours
80 hours
90 hours
100 hours
Validate
Solution:
👈: Video Solution
In 1 hour the part emptied by the leak =
1
9
−
1
10
=
1
90
Hence, the leak can empty the cistern in 90 hours.
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