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View Poll Results: How many times a week do you eat out?

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Thread: Funny Mathematical Tool

  1. #1 Funny Mathematical Tool 
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    My aunt and uncle sent me this in an e-mail.



    YOUR AGE BY EATING OUT

    Don't tell me your age;
    you probably would tell a falsehood anyway-but your waiter may know!


    YOUR AGE BY DINER & RESTAURANT MATH


    This is pretty neat



    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!

    This is not one of those waste of time things, it's fun.


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

    (as few as 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!)



    THIS IS THE ONLY YEAR (2008) IT WILL EVER WORK, SO SPREAD IT AROUND WHILE IT LASTS




    I did not even figure it out, I just thought it was cool

    Sincerely,


    William McCormick


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  3. #2 Re: Funny Mathematical Tool 
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    Quote Originally Posted by William McCormick
    THIS IS THE ONLY YEAR (2008) IT WILL EVER WORK
    It also only works if you are less than 100 years old.


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  4. #3 Re: Funny Mathematical Tool 
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    Quote Originally Posted by JaneBennet
    Quote Originally Posted by William McCormick
    THIS IS THE ONLY YEAR (2008) IT WILL EVER WORK
    It also only works if you are less than 100 years old.

    I believe you are correct.

    I guess they were going for the majority. Probably not a lot of 100 plus year old e-mailers.

    Can you make one that would work for individuals over a hundred?



    Sincerely,


    William McCormick
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  5. #4  
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    Me? Sure. But Iíll do it the quick way as I donít believe in circumlocution.

    1. Multiply your first number by 1000.

    2. If you have already had your birthday this year add 2008. If you havenít, add 2007.

    3. Now subtract the four digit year that you were born in.

    You should have a four-digit number. The first digit of this was your original number. The next three numbers are your age (with a leading 0 if you are under 100).

    See the pattern yet? Come on, you must be able to twig it now.

    Again this trick only works for the year 2008. Unfortunately it also only works if you are less than 1000 years old.
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  6. #5  
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    Quote Originally Posted by JaneBennet
    Me? Sure. But Iíll do it the quick way as I donít believe in circumlocution.

    1. Multiply your first number by 1000.

    2. If you have already had your birthday this year add 2008. If you havenít, add 2007.

    3. Now subtract the four digit year that you were born in.

    You should have a four-digit number. The first digit of this was your original number. The next three numbers are your age (with a leading 0 if you are under 100).

    See the pattern yet? Come on, you must be able to twig it now.

    Again this trick only works for the year 2008. Unfortunately it also only works if you are less than 1000 years old.
    I don't normally even do those. But it seemed short and sweet. And I thought it might perk up the math forum.

    You saved me a lot of time and effort thanks. I have about thirty jobs in my head all waiting to be done. I just cannot bring myself to delve to deeply into something like that. You do that stuff all the time. So I figured why not ask an expert.

    The difference between 1150 and 350 the min and max of the possible totals of times a week times two plus five, offers nine different values possible. In the third column.

    That is the one that I did not see just looking at it.

    Jane it pays to go to someone that specializes in something. Again thanks.



    Sincerely,


    William McCormick
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  7. #6  
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    There is nothing special in this. Anybody can do it.

    If your number is N, then after the first five steps, you should get 100N+2008 or 100N+2007. They could have just asked you to multiply by 100 and add 2008 or 2007 directly, but the extra steps are just to make it less obvious whatís going on.

    And if you subtract your year of birth from 2008 or 2007, what do you get? Of course. Why, if someone wonít tell you their age, just tell them to subtract their year of birth from 2008 (if theyíve had their birthday this year) or 2007 (if they havenít). It works every time!
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  8. #7 Re: Funny Mathematical Tool 
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    Quote Originally Posted by William McCormick
    My aunt and uncle sent me this in an e-mail.



    YOUR AGE BY EATING OUT

    Don't tell me your age;
    you probably would tell a falsehood anyway-but your waiter may know!


    YOUR AGE BY DINER & RESTAURANT MATH


    This is pretty neat



    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!

    This is not one of those waste of time things, it's fun.


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

    (as few as 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!)



    THIS IS THE ONLY YEAR (2008) IT WILL EVER WORK, SO SPREAD IT AROUND WHILE IT LASTS




    I did not even figure it out, I just thought it was cool

    Sincerely,


    William McCormick
    It doesn't work if you don't want to eat out at all. (unless you write the 0 before your age)
    373 13231-mbm-13231 373
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