Question

what is the matter of state

Answer 1

Answer:

let the 2 digit no be 10x+y

x+y=9 1

10y+x=10x+y+27

9x-9y=-27

9(x-y)=-27

x-y=-3 2

on solving

x+y=9

x-y=-3

2x=6

x=3

y=6