I Know Your Number

A Mathematical puzzle for all ages. Memorize a number between 1 to 9. The puzzle highlights a random number. For every highlight the user should add 1 to his memorized number. Whenever the total reaches 16 you should press Yes else press No to move on, When you press Yes, surprisingly the highlighted random number is the one you have memorized. This is a simple puzzle for any age group. Make sure you do your calculation right. I have shown a Calculation bar which shows your calculation by assuming X as your number. This is my first app. Guess I did many mistakes. So please encourage me by giving your comments and rating the application.