there are three pipes pipe a can fill in 20 minutes and pipe B can fill in 30 minutes and pipe C can empty the same in 40 minutes if all of them work together find the time taken to fill the tank?
Answers
Answered by
2
Hope it helps........
:)
:)
Attachments:
Answered by
2
No(0)A = 20
B = 30
C = -40
LCM = 120
=> A = 6,TIMES
B = 4
C = -3
=> A+B-C = 7
TIME TAKEN TO FILL THE TANK = 120/7 MINS = 17 1/7 MINS
Similar questions