"Pipe `A` can fill an empty tank in 6 hours and pipe `B` in 8 hours. If both the pipes are opened an
Channel: Doubtnut
Date: 2020-07-05

"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?"