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5th Class Mathematics Factors and Multiples Question Bank Factor & Multiple

  • question_answer
    Determine the number nearest to 100000 but greater than 100000 which is exactly divisible by each of 8, 15 and 21?

    A)  100200                        

    B)  100800        

    C)  240800           

    D)  260040

    Correct Answer: B

    Solution :

     L.C.M. = 8, 15, 21
    3 8, 15, 21
    8, 5, 7
    \[3\times 8\times 5\times 7=840\]
    840 100000 840
    1600 840
    7600 7560
    40
    Reminder= 40 \[84040=800\] \[100000+800=100800\]


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