A two digit number is such that the sum ofits digit is 12 and the ones digit is twice its ten digit.Find the number

Question

A two digit number is such that the sum of its digit is 12 and the ones digit is twice its ten digit.Find the number

Answer 1

Let x = tens digit and y = ones digit.

Then, x + y = 12 and y = 2x.

So, x + 2x = 12

3x = 12

x = 4 and y = 8

The two digit number is 48.