Question

The ratio of the tens digit to the ones digit of a 2 digit number is 2:3.If 27 is added to the number,
the digits will be reversed.Find the number.

Answer 1

Let us take the number as 20x+3x (because of the ratio)
adding 27
23x+27=32x
or, 27=32x-23x
or, 27=9x
or, x=3
So number is 20(3)+3(3)
or, 69