A water tank can be filled by a tap in 30 minutes and another tap can fill it in 60 minutes. If both the taps are kept open for 5 minutes and then the first tap is closed, how long will it take for the tank to be full?

A water tank can be filled by a tap in 30 minutes and another tap can fill it in 60 minutes. If both the taps are kept open for 5 minutes and then the first tap is closed, how long will it take for the tank to be full? [A]20 minutes [B]25 minutes [C]30 minutes ..

Pipe P and Q can fill a tank in 10 and 12 hours respectively and C can empty it in 6 hours. If all the three are opened at 7 am, at what time will one-fourth of the tank be filled?

Pipe P and Q can fill a tank in 10 and 12 hours respectively and C can empty it in 6 hours. If all the three are opened at 7 am, at what time will one-fourth of the tank be filled? [A]10 am [B]11 am [C]10 pm [D]11 pm Show Answer 10 pm Part of ..

A pipe can fill a tank in x hours and another can empty it in y hours. In how many hours they can together fill it (where y > x) :

A pipe can fill a tank in x hours and another can empty it in y hours. In how many hours they can together fill it (where y > x) : [A] [B] [C] [D] Show Answer When both pipes are opened simultaneously, part of the tank filled in 1 hour ∴ Required time Hence ..

There are two pumps to fill a tank with water. First pump can fill the empty tank in 8 hours, while the second in 10 hours, If both the pumps are opened at the same time and kept open for 4 hours, the part of the tank that will be filled up is :

There are two pumps to fill a tank with water. First pump can fill the empty tank in 8 hours, while the second in 10 hours, If both the pumps are opened at the same time and kept open for 4 hours, the part of the tank that will be filled up is : [A] ..

Two pipes A and B can separately fill a tank in 2 hours and 3 hours respectively. If both the pipes are opened simultaneously in the empty tank, then the tank will be filled in:

Two pipes A and B can separately fill a tank in 2 hours and 3 hours respectively. If both the pipes are opened simultaneously in the empty tank, then the tank will be filled in: [A]1 hour 12 minutes [B]1 hour 15 minutes [C]1 hour 20 minutes [D]2 hours 30 minutes Show Answer 1 hour ..