6th Class Mathematics Playing with Numbers Question Bank Playing with Numbers

  • question_answer
    What least value should be given to * so that the number 653*47 is divisible by 11?

    A)  9

    B)  6

    C)  7

    D)  1

    Correct Answer: D

    Solution :

    Sum of odd places \[=6+3+4=13\] Sum of even places \[=5+*+7=12+*\] If the number is divisible by 11, then either\[13-(12+*)=0\] Or\[13-(12+*\,)=11\text{ }m\], where m is any integer. \[\Rightarrow *=1\]


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