Question

sum of two digits of a 2-digit number is 12. If the digits are reversed, the new number,so formed increase by 36.find the number.
​

Answer 1

Step-by-step explanation:

$x + y = 12$

$y + x = 12 + 36$

$y + x = 48$

x+y=12

y+x=48

x=36

$x = 36$

$y + x = 48$

$y + 36 = 48$

$y = 48 - 36$

$y = 12$

$(x.y) = (36.12)$

x=36 ,y=12

hence it is proved