"Pipe A can   fill a tank in 30 hours and pipe B in 45 hour. If both the pipes are opened
Channel: Doubtnut
Date: 2020-07-12

"Pipe A can
 
  fill a tank in 30 hours and pipe B in 45 hour. If both the pipes are opened
 
  in an empty tank how much time will they take toÂ fill it?"