A pipe can fill a cistern is 5 hours. the cistern can be emptied by on outlet pipe in 6 hours .How much time will it take to fill the cistern if both the pipes are opened together?
Answers
Answered by
9
Answer:
Pipe (1) in Ihr = I/5
Pipe (2) in 1hr =-1/6
1/5-1/6=6/30-5/30 = 1/30
30 hrs. Ans
Similar questions