Pipe X can fill a tank in 72 minutes while pipe Y can fill the same tank in 90 minutes. If pipe X and Y are opened simultaneously, then after how much t...
Pipe A fills a cistern in 6 hours, but pipe B can drain the full cistern in 9 hours. If both pipes operate together, how long will it take to fill the c...
Pipe ‘A’ can fill a tank in 6 hours whereas pipe ‘B’ can empty it in 18 hours. If both pipes are opened together while pipe ‘B’ is closed af...
Pipe ‘X’ and pipe ‘Y’ together can fill an empty tank in 24 hours while pipe ‘Y’ and pipe ‘Z’ together take 15 hours to fill the same ta...
Pipe ‘A’ can fill a tank in 40 hours whereas leak ‘A’ can empty it in 50 hours. If they both operate along with pipe ‘B’, then the given tan...
A cistern has two pipes one can fill it with water in 16 hours and other can empty it in 10 hours. In how many hours will the cistern be emptied if both...
The work done by a man, a woman and a child are in the ratio of 4 :3: 1. There are 15 men, 20 women and 30 children in a factory. Their weekly wages amo...
- Pipe 'A' is 3 times as efficient as pipe 'B'. Pipe 'C', which is one-third as efficient as pipe 'B', can fill a tank alone in 36 hours. Find difference bet...
Pipe ‘A’ and pipe ‘B’ can fill a cistern in 20 minutes and 10 minutes respectively. Pipe ‘C’ alone can empty the cistern in 12 minutes. If a...
Pipe M can fill a tank in 10 hours, and pipe N can do the same in 30 hours. Pipe O can drain half the tank in 6 hours. If all pipes are opened at once, ...
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