number tricks - thats seven

With number tricks you can make people think as if you can read their mind...

Steps
- Think any number.
- Now double that.
- Add 4 to it.
- Add 15 more to it
- Subtract 5 and divide by 2.
- Now subtract the original number from the above result.

The result is always 7.


EXAMPLE:
- Think any number : say 5
- Now double that : 5*2 = 10
- Add 4 to it : 10+4 = 14
- Add 15 more to it : 14+15 = 29
- Subtract 5 : 29-5 = 24
- divide by 2 : 24/2 = 12
- Now subtract the original : 12-5 = 7
number.