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Pipes and Cisterns Practice Test 1 with solutions
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© examsnet.com
Question : 18
Total: 40
A and B together can fill a tank in 4 hours, whereas C alone can empty it in 8 hours. Working together, all the three can fill the tank in how much time?
7
1
14
hours
6
2
3
hours
8 hours
6 hours
7 hours
Validate
Solution:
👈: Video Solution
Part of tank filled by A and B in 1 hour =
1
4
Part of tank emptied by C in one hour =
1
8
Part of tank filled by A, B and C in 1 hour
=
1
4
−
1
8
=
1
8
So, together they fill the tank in 8 hours.
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