Question

if the sum of digit number and number obtained by reversing the digit is 44, find the find the sum of the digit of the 2 digit number

Answer 1

let the two digit's number be 10A+B,

then
it's sum of digit's=A+B,

and number obtained after reversing it's digit's=10B+A,


then according to the question , we have

A+B+10B+A=44,

11A+11B=44,

11(A+B)=44,

then

A+B=4

Answer 2

no. =10y+x
no. obtain by reversing =10x+y
sum=10y+x+10x+y=44
11y+11x=44
y+x=4