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8th Class Mathematics Playing with Numbers Question Bank Playing with Numbers

  • question_answer
    A 5-digit number xy235 is divisible by 3 such that \[x+y<5\], where x and y are single digits, then possible values of (x, y) are _____.

    A)  (1, 1) or (4, 0)

    B)         (1, 1) or (2, 0)

    C)  (1, 1) or (0, 2)

    D)         (2, 0) or (0, 2)

    Correct Answer: B

    Solution :

     xy235 is divisible by 3 so sum of its digits is also divisible by 3, \[\therefore x+y+2+3+5=x+y+10\] is divisible by 3 and \[x+y<5\]. So possible values of (x, y) are (1, 1) or (2, 0),


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