159 videos341 docs385 tests

1. What is the formula to calculate the time taken to fill a tank using multiple pipes? 
2. How do I calculate the individual rates of the pipes when given their efficiency? 
3. Can pipes be used to empty a tank as well? 
4. If two pipes can fill a tank in 4 hours and 6 hours respectively, how long would it take both pipes to fill the tank together? 
5. How can I determine the time taken to empty a tank when given the efficiency of an outlet pipe? 
159 videos341 docs385 tests


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