Pipes A and B can fill a tank in 16 hours, where as pipe C alone can empty the full tank in 24 hours. A and B are opened together for 10 hours and then closed. Pipe C was then opened. The then will now be emptied by C in?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 15 hrs
| Application |
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According to the question, 1/A + 1/B = 1/16 And 1/C = - 1/24 Pipe A and B both were open 10 hours together and t is the time taken to empty the tank by C So, (1/A + 1/B) - t(1/C) = 0 10/16 = t/24 t = (10 × 24)/16 = 15 hrs |