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MEDIUM
ENGLISH
Mathematics
If two pipes function together, the cistern will be filled in 6 hrs. One pipe fills the cistern 5 hrs. faster than the other. How many hours it take the second pipe to fill the cistern?
5 hrs
Correct answer
B
10 hrs
Option B
C
15 hrs
Option C
D
20 hrs
Option D
Correct answer: A
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