Question

A number is 27 more than the number obtained by reversing its digits. Find that number

Answer 1

so let the digits be x , y 

so the number is 10x+ y 

now 10x + y = 10y + x + 27 

 (x-y)(9) = 27 

x-y = 3

x = 3+ y 

by hit and trial we get x = 5 and y = 2 

so the number is 52 ANSWER