A pipe can empty a tank in 40 minutes. A second pipe with diameter twice as much as that of tbe first is also attached with the tank to empty it. The two together can empty the tank in :
1). 8 minutes
2). 13 1/3 minutes
3). 30 minutes
4). 38 minutes
Onc Pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, the slower Pipe alone will be able to fill the tank in
1). 81 minutes
2). 108 minutes
3). 144 minutes
4). 92 minutes
A pipe can fill a tank in 24 hrs. Due to a leakage in the bottom, it is filled in 36 hrs. If the tank is half full, how much time will the leak take to empty the tank
1). 48 hrs
2). 72 hrs
3). 36 hrs
4). 24 hrs
A ieak in the bottom of a tank can empty the full tank in 6 hours. An inlet pipe fills water at the rate of 4 litres a minute. When the tank is full , the inlet is opened and due to the leak the tank is empty in 8 hours. Find the capacity of the tank.
1). 5760 litres
2). 96 litres
3). 10 litres
4). 24 litres
Two pipes A and B can fill a tank with water in 30 minutes and 45 minutes respectively. The water pipe C can empty the tank in 36 minutes. First A and B are opened . After 12 minutes C is opened. Total time (in minutes) in which the tank will be filled up is:
1). 30
2). 12
3). 36
4). 24