Fun with math

Discussion in 'Chit Chat' started by CaptainObvious, Dec 11, 2008.

  1. or is this simple arithmetic? Anyway, give it a whirl.

    1. First of all, pick the number of times a week that you would like to go out to eat.

    (more than once but less than 10)

    2. Multiply this number by 2 (just to be bold)

    3. Add 5

    4. Multiply it by 50

    5. If you have already had your birthday this year add 1758...
    If you haven't, add 1757.

    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 go out to restaurants in a week.)

    The next two numbers are

    YOUR AGE ! ------ (Oh YES, it is!)
  2. Lucrum


    Seems like I saw this somewhere before - the IRS Form 1040 instructions maybe?
  3. Yes, they forgot the last line:

    "If your age is greater than 5, or your favorite number is between zero and eleven, you must recalculate using the alternative minimum tax".
  4. maxpi


    The Obama version is: on line 1 write your annual income. Send the amount on line 1...

    BTW, I love those mathy things and cannot figure out how they work but they are fascinating...
  5. Lucrum


    Well, at least he simplified it.

    I suppose that counts as "change".
  6. Nah. When you select a number, select "X", and then do the things it says. Like if it say add 100, you get:

    x + 100

    Then when it says double it, you get 2X + 200 etc.

    Heck you can make them up:

    Here's one:

    Pick a number between one and 100:


    Add 50:

    (X + 50)

    Multiply your number by 4

    (4X + 200)

    Subtract four times your original number:


    Subtract 101

    (99) <= note that at this point, it doesn't matter what they started with...they will have "99", even if several people did it starting with different numbers.


    Subtract your age from the number in your head

    (99 - age)

    Tell me what that number is

    (participant says, "64")

    Then you calculate: If 99 - age = 64

    Then algebraically, age = 99 - 64

    So you just take 99 and subtract the number they called out (i.e., 64), which is easy to do in your head since no borrowing is required.

    99 - 64 = 35...So their age is 35

    Then you just announce their age in a kind of shock and awe tone.

  7. That is some scary stuff. Not the math equation, but my age. I didn't realize I was this old.