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    Question

    Consider the given question and decide which of the

    following statements is sufficient to answer the question.‘N’ is any natural number. When it will be divisible by 72?(I) ‘N’ is divisible be 9.(II) ‘N’ is divisible by 4.
    A Neither I nor II Correct Answer Incorrect Answer
    B Only I Correct Answer Incorrect Answer
    C Only II Correct Answer Incorrect Answer
    D Both I and II Correct Answer Incorrect Answer

    Solution

    Any natural number ‘N’ is divisible by 72 if and only if it is divisible by both 9 and 8.
    Statement I:
    ‘N’ is divisible by 9, but we do not know weather it is divisible by 8 or not
    So, statement I is not sufficient to answer the question.
    Statement I:
    ‘N’ is divisible by 4, but we do not know whether it is divisible by 8 and 9 or not
    So, statement II is not sufficient to answer the question.
    Therefore, neither statement (I) nor statement (II) is sufficient.

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