a tank can be filled by Pipes A and B separately in 3 and 5 mins respectively. AThird pipe C can empty the same tank in 3 minutes. if all the three pipes are opened together, how long will the three pipes take to fill the 2/5 th full tank
Answers
Answered by
1
in 8 minutes the three pipes will fill the 2/5 full tank
Attachments:
swatib907:
not clear
not correct
Similar questions