Mystery of Math

1. First of all, pick the number of days a week that you would like to have
   sex

2. Multiply this number by 2

3. Add 5

4. Multiply it by 50

5. If you have already had your birthday this year, add 1747.
   If you haven't, add 1746.

6. Last step: Subtract the four digit year that you were born.

RESULTS:
You should now have a three digit number: the first digit of this was your
original number (i.e. how many times you want to have sex each week). The
second two digits are your age now.