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  4. Quantitative Aptitude
  5. LCM & HCF

Railways Quantitative Aptitude LCM & HCF Sample Paper HCF and LCM Sample Test Paper-2

  • question_answer
    Let 'K' be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder 25 in each case. Then sum of the digits of 'K' is

    A)  7                    

    B)  5       

    C)  6                    

    D)  8

    Correct Answer: A

    Solution :

    [a] It is given that the remainder is 25 in each case when we divide 1305, 4665 and 6905 by k. So, subtracting 25 from each of the numbers, we get 1280, 4640 and 6880. HCF (1280, 4640 and 6880) = 160 So the greatest number is 160. So k = 160 Sum of its digit = 1 + 6 + 0 = 7 So the answers is 7.


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