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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2006

  • question_answer
        A book contains 1000 pages numbered consecutively. The probability that the sum of the digits of the number of a page is 9, is

    A)  zero                     

    B)  \[\frac{55}{1000}\]

    C)  \[\frac{33}{1000}\]                        

    D)  \[\frac{44}{1000}\]

    Correct Answer: B

    Solution :

                    Since, in 1000 pages there are 55 pages in which the sum of digits of page number is 9. \[\therefore \] Required probability\[=\frac{55}{1000}\].


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