Two pipes can separately fill a tank in 20 hours and 30 hours respectively. Both the pipes are opened to fill the tank but when the tank is 1/3 full a leak develops in the tank through which 1/3 of the water sup- plied by both the pipes leak out. What is the total time taken to fill the tank?

Two pipes A and B can fill a tank in 20 and 30 hours respectively. Both the pipes are opened to fill the tank but when the tank is one-third full, a leak develops in the tank through which one-third water supplied by both the pipes goes out. The total time taken to fill the tank is 12 hou r s b. 14 hou r s c. 16 hou r s d. 18 hou r s

Two pipes A and B can fill a tank in 45 hours and 36 hours, respectively. If both the pipes are opened simultaneously, how much time will be taken to fill the tank ?

Two pipes A & B can fill a tank in 36 hours and 45 hours respectively. If both the pipes are opened simultaneously. How much time will be taken to fill the tank?

Pipes A and B can fill a tank in 5 hours and 20 hours respectively. If both pipes are opened then, how much time (in hours) it will take to fill the tank?

If two pipes A and B can fill a tank in 20 and 30 min separately. If both pipes are opened, then tank will be filled in

Two pipes A and B can fill an tank in 4 hours and 5 hours respectively. If the pipes A and B are turned on alternately for 1 hour eachm then what is the time taken to fill the tank

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?