"A tank is filled in 5 hours by three pipes A, B and C. The pipe C is twice as fast as
Channel: Doubtnut
Date: 2020-04-05

"A tank is filled in 5 hours by three pipes A, B
 and C. The pipe C is twice as fast as B and B is twice as fast as A. How much
 time will pipe A alone take to fill the tank?
`20\ hou r s`
b. `25\ hou r s`
c. `35\ hou r s`

d. cannot be
 determined e. none of these"