If two pipes function simultaneously, the reservoir will be filled in 12 hours. The second pipe fills the reservoir 10 hours faster than the first. How many hours does it take the second pipe to fill the reservoir?
A. 10
B. 20
C. 30
D. 35
Solution (By Examveda Team)
Lets suppose tank got filled by first pipe in X hours,So, second pipe will fill the tank in X + 10 hours.
⇒1/X + 1/X + 10 = 1/12
⇒X=20
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