Pipe A can fill an empty tank in 6 hours and pipe B in 8 hours. If both the pipes are opened and after 2 hours pipe A is closed, how much time B will take to fill the remaining tank?
Pipe A can fill an empty tank in 6 hours and pipe B in 8 hours. If both the pipes are opened and after 2 hours pipe A is closed, how much time B will take to fill the remaining tank?
[A]
[B]
[C]
[D]
Part of the tank filled by pipe A and B in 2 hours
Remaining part
This part is filled by pipe B.
∴ Required Time
Hence option [B] is correct answer.
