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.
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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.
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