Question

A number consist of two digits whose sum is 10. When 36 is added to the number its digits are reversed. Find the number

Answer 1

Answer:

Step-by-step explanation:

let no be = xy

x + y = 10

10x + y + 36 = 10y + x

9x - 9y = - 36 = x - y =  - 4

using elimination ;

x = 3 y = 7

therefore number is 37