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If a pipe inlet can fill a tank in 14 hours and another pipe which is outlet can empty the same tank in 56 hours. If both of them are opened, find the time taken to fill the tank? |
\(\frac{55}{3}\) \(\frac{56}{7}\) \(\frac{56}{13}\) \(\frac{56}{3}\) |
\(\frac{56}{3}\) |
Total efficiency of both pipes = 4 - 1 = 3 Time taken = \(\frac{56}{3}\) hrs |
