The difference between a two-digit number and the number obtained by interchanging the positions of its digits is What is the difference between the two digits of that number?

The difference between a two-digit number and the number obtained by interchanging the positions of its digits is What is the difference between the two digits of that number?

A 2

B 10

C 4

D None of them

Solution

Correct Answer: Option C

The number=10y+x

10y+x-10x0y=36

y-x=4