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Shortcuts & Tricks: Pipes and Cisterns Video Lecture | 3 Months Preparation for CAT

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FAQs on Shortcuts & Tricks: Pipes and Cisterns Video Lecture - 3 Months Preparation for CAT

1. How can we calculate the time taken to fill a cistern using multiple pipes?
Ans. To calculate the time taken to fill a cistern using multiple pipes, find the combined rate of all the pipes working together. Then, divide the total volume of the cistern by the combined rate to get the time taken.
2. What is the formula for finding the efficiency of a pipe in a pipe and cistern problem?
Ans. The efficiency of a pipe is calculated by dividing the total volume of the cistern by the time taken by that particular pipe to fill the cistern.
3. How can we calculate the time taken for a leak to empty a cistern?
Ans. To calculate the time taken for a leak to empty a cistern, find the rate at which the leak empties the cistern. Then, divide the total volume of the cistern by the rate of the leak to get the time taken.
4. What is the concept of relative efficiency in pipes and cisterns problems?
Ans. Relative efficiency in pipes and cisterns problems compares the efficiency of two pipes working together to the efficiency of one pipe working alone. It helps in determining which pipe is more efficient when working together.
5. How can we calculate the time taken to fill a cistern when both pipes are filling and emptying it simultaneously?
Ans. To calculate the time taken to fill a cistern when both pipes are filling and emptying it simultaneously, find the net rate of filling or emptying by subtracting the rate of the pipe emptying the cistern from the rate of the pipe filling it. Then, divide the total volume of the cistern by the net rate to get the time taken.
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