What will be the difference between two digit number?

The difference between a two digit number and the number obtained by interchanging the positions of its digits is 36. What is the different between the two digits of that number?

  1. 2
  2. 3
  3. 4
  4. 5
Monis Rasool Professor Asked on 24th May 2015 in Maths.
Add Comment
  • 1 Answer(s)

    Answer: (3) 4
    Explanation:-

    Let be the unit digit is X and ten digit is Y
    According to question, (10Y + X) – (10X – Y) = 36
    9Y – 9X = 36
    9(Y – X ) = 36
    Y – X = 36/9
    Y – X = 4

    Hence, the difference between required numbers is 4.

    Anurag Mishra Professor Answered on 28th May 2015.
    Add Comment
  • Your Answer

    By posting your answer, you agree to the privacy policy and terms of service.