Question

The sum of digit of two-digit number is 9 . if the digits are reversed the new number will be 99 more than the original number find the original number.​

Answer 1

Answer:

Let the digits be x and y and the number be

10x +y

It is given x+y=9

10y+x=99+10x+y

9y-9x= 99

y -x =11

y -x +(x+y)=11+9=20

2y=20

y=10

There's something wrong in the question

y has to come one digit