Home
Class 14
MATHS
Pipe X can fill a tank in 20 hours and ...

Pipe X can fill a tank in 20 hours and Plpe Y can fill the tank in 35 hours. Both the pipes are opened on alternate hours. Plpe Y is opened first, then in how much time (in hours) the tank will be full?

A

269/11

B

280/11

C

179/7

D

172/7

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

Two pipes A and B can fill a tank in 6 hours and 4 hours respectively . If they are opened on alternate hours and if pipe A is opened first , in how many hours , the tank shall be full ?

Pipe A alone can fill a tank in 8 hours. Pipe B alone can fill it in 6 hours. If both the pipes are opened and after 2 hours pipe A is closed, then the other pipe will fill the tank in

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 to fill it?

Pipe A can fill a tank in 6 hours. Pipe B can empty it in 15 hours. If both the pipes are opened together, then the tank will be filled in how many hours?

Pipe A can fill a tank in 12 hours. Pipe B can empty it in X hours. If both the pipes are opened together, then the tank will be filled in 30 hours. Find X

Pipe A can fill the tank in 12 hours and pipe B can fill the tank in 8 hours. A third pipe C empties the tank in 15 hours. If all pipes are opened together then after 5 hours what portion of the tank will be filled.

Pipe A can fill a tank in 10 hours, Pipe B can fill the same tank in 15 hours. Pipe C can empty the full tank in 20 hours. Pipes A, B and C are opened alternatively for one hours each. If A is opened first, then how many hours will they take to till the empty tank? 24 h r s b. 25 h r s c. 26 h r s d. 24 2/3h r s