Concept of pipe & cistern

problems on pipes and cisterns.

What is inlet and outlet in pipes and cisterns

Questions On Pipe & Cistern(पाइप और सिस्टर्न पर प्रश्न)|OMR|Summary

Questions On Pipe & Cistern(पाइप और सिस्टर्न पर प्रश्न)|OMR|Summary

Pipes A, B and C together can fill a cistern in 12 hours. All the three pipes are opened together for 4 hours and then C is closed. A and B together take 10 hours to fill the remaining part of the cistern. C alone will fill two-thirds of the cistern in:

An outlet pipe can empty a cistern in 5h . In what time will the pipe empty 2/5 part of cistern ?

Two pipe A and B can separately fill a cistern in 60 minutes and 75 minutes respectively . There is a third pipe at the bottom of the cistern to empty it, if all the three pipes are simultaneously opened, then the cistern is filled in 50 minutes . In how much time can the third pipe alone empty the cistern ?