Question

    Study the following information carefully and answer the given questions.

    In how much time can Pipe C empty the tank? Statement

    I:  Pipes A and B can fill half the tank in 6 hrs 30 minutes. Statement II:  Together with emptying pipe C, pipes A and B can fill the tank in 32  (1/2)hrs.
    A If the data in statement I alone is sufficient to answer the question. Correct Answer Incorrect Answer
    B If the data in statement II alone is sufficient to answer the question. Correct Answer Incorrect Answer
    C If the data either in statement I alone or statement II alone are sufficient to answer the question. Correct Answer Incorrect Answer
    D If the data given in both I and II together are not sufficient to answer the question. Correct Answer Incorrect Answer
    E If the data in both the statements I and II together are necessary to answer the question. Correct Answer Incorrect Answer

    Solution

    A and B can fill half the tank in 6 hrs 30 minutes. So full tank in double time i.e, 13 hrs. So from II 1/C = 2/65 – 1/13 = – 3/65 So C can empty full tank in 21 (2/3)   hrs.

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