Question

Which two digit numbers becomes 10 when added to and decrease by 36 when reversed?

Answer 1

Answer:

73.

Step-by-step explanation:

Let x and y be the digits

x + y = 10

(10x+y) - (10y+x) = 36

9x - 9y = 36 => x-y = 4.

Solve the equations

x+y = 10

x-y = 4

=> 2x = 14 => x = 7, y = 3

Thus the number is 73.