Two pipes A and B can fill a tank in 1 h and 75 min, respectively. There is also an outlet C. If all the three pipes are opened together. The tank is full in 50 min. How much time will be taken by C to empty the full tank?
Correct Answer: Description for Correct answer:
Work done by C in 1 min
= \( \Large \left(\frac{1}{60}+\frac{1}{75}-\frac{1}{50}\right) \)
= \( \Large \frac{5+4-6}{300}=\frac{3}{300}=\frac{1}{100} \)
Hence, C can empty the full tank in 100 min.
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