A pipe can fill a tank in x hours and another can empty it in y hours. In how many hours they can together fill it (where y > x) :
A pipe can fill a tank in x hours and another can empty it in y hours. In how many hours they can together fill it (where y > x) :
[A]
[B]
[C]
[D]
When both pipes are opened simultaneously, part of the tank filled in 1 hour
∴ Required time
Hence option [C] is correct answer.
