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  3. 8th Class
  4. Mathematics
  5. Linear Equations in One Variable

8th Class Mathematics Linear Equations in One Variable Question Bank Linear Equations in One Variable

  • question_answer
    X is a two-digit number. Y is the number obtained on reversing the digits of X. Which of the following is true?

    A)  \[X+Y\] is divisible by 10.

    B)                         \[X-Y\] is divisible by 6.

    C)                         \[X-Y\] is divisible by 9.

    D)                         \[X+Y\] is divisible by 8.

    Correct Answer: C

    Solution :

    Let us consider an example. Consider the two-digit number 25. The number obtained on reversing the digits is 52. Their difference \[=52-25=27\] s divisible by 9.


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