Question

The sum of a two digit number and number obtained by reversing its digits is 121.Find the number if its unit digit is 5

Answer 1

Answer:

65

Step-by-step explanation:

let units digit = y

tens digit = x

the number = 10x+y

If the digits are reversed then units digit = x

tens digit = y

reversed number = 10y+x

Given (10x+y) + (10y+x) = 121

also unit digit = 5  y =5

10x+ 5 + 50 + x = 121

11x + 55 = 121

11x = 66

x = 6

number = 10x+y

10*6 + 5= 60+5=65