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

Answer: Tens digit of number = x

Ones digit of number = 12-x

Original Number = 10x+12-x

= 9x+12

Reversed Number = 10(12-x)+x

= 120-10x+x

= 120-9x

According to the question,

9x+12+36=120-9x

9x+48=120-9x

9x+9x=120-48

18x=72

x=72/18

x=4

Original Number = 9x+12

= 9(4)+12

= 36+12

= 48 is the number