How do these things work....

[winnieb]

I think these types of things have been posted (that 7up ad comes to mind) but I am at work and trying to be quick and sneaky on here--- but how do these things work.....
I got this in an email-- have received these 100s of times.... but what is the mathematicla secret behind it--- I am sure if has something to do with that 1755 or 1754 number---


YOUR AGE BY CHOCOLATE MATH
DON'T CHEAT BY SCROLLING DOWN FIRST!
It takes less than a minute....... Work this out as you
read.. Be sure you don't read the bottom until you've worked it
out!
>> > 1. First of all, pick the number of times a week that
>you would like > > to have chocolate. (more than once but less than 10)

>> > 2. Multiply this number by 2 (Just to be bold)


>> > 3. Add 5. (for Sunday)

>> > 4. Multiply it by 50 I'll wait while you get the
calculator.................

>> > 5. If you have already had your birthday this year add
>1755.... If you haven't, add 1754 ......


>> > 6. Now subtract the four digit year that you were born.
You should have a three digit number .
The first digit of this was your original number (i.e.,
how many times > > you want to have chocolate each week).
The next two numbers are .........YOUR AGE!