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Railways Sample Paper RRB (Group D) Sample Test Paper-15

  • question_answer
    There is one number which is formed by writing one digit 6 times (e.g. 111111, 444444 etc.). Such a number is always divisible by:

    A)  7 and 11

    B)  11 and 13

    C)  7, 11 and 13    

    D)  None of these

    Correct Answer: C

    Solution :

    [c] Since 111111 is divisible by each one of 7, 11 and 13, so each one of given type of numbers is divisible by each one of 7, 11, and 13. As we may write, \[222222=2\times 111111,\,\,333333=3\times ~111111,\]etc.


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