Question

Write a two digit number, sum of whose digits is 4 and difference is 2 amd tens digit is greater than units digit, with full explanation.​

Answer 1

Answer:

31

Step-by-step explanation:

 Let the required number be ab.{ a > b }

 Given, sum of digits is 4 and difference of digits is 2 it means:

  a + b = 4    and   a - b = 2

⇒ a - b = 2

⇒ a = 2 + b

   Thus,

          a + b = 4

       2 + b + b = 4

                  2b = 2

                    b = 1

Hence,

  a = 2 + b = 2 + 1 = 3

Therefore the required number is ab or 31.

Answer 2

Step-by-step explanation:

The upper answer is totally correct and that is 31