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Railways R.R.C. (Patna) Solved Paper Held on 1st Shift 16-11-2014

  • question_answer
    A pump can fill a tank with water in 2 hours. Because of a leak in the tank, it takes \[2\,\,\frac{1}{3}\]hours to fill the tank. The leak can empty the filled tank in?

    A) \[2\,\,\frac{1}{3}\,\,hours\]                     

    B) 7 hours

    C) 14 hours                       

    D) 16 hours

    Correct Answer: C

    Solution :

    The leak can empty the filled tank in \[=\frac{2\times \frac{7}{3}}{\frac{7}{3}-2}\] \[=\frac{14\times 3}{3\times 1}\] \[=14\,\,hours\]


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