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Puzzle

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  • 08-06-2000 8:10pm
    #1
    Registered Users Posts: 3,528 ✭✭✭


    Answers on a post card please smile.gif



    Three guys in a hotel call room service and order two large pizzas. The delivery boy brings them up with a bill for exactly $30.00. Each guy gives him a $10.00 bill, and he leaves. That's fact!
    When he hands the $30.00 to the cashier, he is told a mistake was made. The bill was only $25.00, not $30.00.The cashier gives the delivery boy five $1.00 bills and tells him to take it back to the 3 guys who ordered the pizza. That's fact!
    On the way back to their room, the delivery boy has a thought...these guys did not give him a tip.He figures that since there is no way to split $5.00 evenly three ways anyhow, he will keep two dollars for himself and give them back three dollars. OK!So far so good! He knocks on the door and one fellow answers. He explains about a mix up in the bill, andhands he guy the three dollars, then departs with his two-dollar tip in his pocket. Now the fun begins!
    Remember $30-$25=$5 Right? $5-$3=$2 Right? So what's the problem? All is well, right? Not quite. Answer this:
    Each of the three guys originally gave $10.00 each. They each got back $1.00 in change. That means they paid $9.00 each, which times three is $27.00. The delivery boy kept $2.00 for a tip. $27.00 plus $2.00 equals $29.00. Where the heck is the other dollar ??????


Comments

  • Registered Users Posts: 2,413 ✭✭✭Toulouse


    Damn you Jimmy smile.gif


  • Registered Users Posts: 3,528 ✭✭✭SickBoy


    Yeah its one of those isn't it. Where are you BTW Carroll?


  • Moderators, Social & Fun Moderators Posts: 28,633 Mod ✭✭✭✭Shiminay


    I've heard the answer to this one before, but I'm damned if I can remember it frown.gif

    Gah!



    All the best,

    Dav
    @B^)
    My page of stuff


  • Closed Accounts Posts: 492 ✭✭Pretence


    They didn't pay £9 each.....!!

    They paid 8.33 * 3 = 25

    5/3 = 1.66 owed each.

    given 1 each->

    (1.66 * 3) - 1 = 2

    2 = yer mans tip


  • Closed Accounts Posts: 492 ✭✭Pretence


    No..........

    Look they paid £25 all together and were owed £5. 5/3= £1.66.

    Which means they paid £8.33 each!!

    The reason you come up with extra pound is cos your rounding everthing down.

    Shouldn't be using the auld ints for the calculation smile.gif


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  • Moderators, Social & Fun Moderators Posts: 28,633 Mod ✭✭✭✭Shiminay


    ya, but floats are so unreliable...



    All the best,

    Dav
    @B^)
    My page of stuff


  • Closed Accounts Posts: 492 ✭✭Pretence


    The poor boyos are loosing 0.66p each.............just not on:/


  • Registered Users Posts: 3,528 ✭✭✭SickBoy


    No they paid $30 each and were owed $5 of which the delivery mut kept $2 so they got $3 split 3 ways is $1 meaning they paid $9 each totaling $27!


  • Closed Accounts Posts: 492 ✭✭Pretence


    Naaaaaaaaaaaaaaaaaaaa........

    Persistent aren't ya smile.gif

    They paid £30 BETWEEN them...........YES
    Thats £10 each ........Yes

    Then it was £25............YES
    Thats how much each they SHOULD have paid eh??? How much, I'll tell ya (again smile.gif)
    Thats £8.33 each.........YES

    So they are owed a £5?........YEs

    Thats £1.66 each they are owed........YEs

    Mutt gives em a pound each which means he keeps the two pounds.........YES = 0.66 * 3= £2

    Yes they ended up paying £9.33 each, thats £28............so what don't you get.


    Your saying they only paid £9 each they didn't they were shafted out of £2

    HELLO biggrin.gif

    U do know the answer to the puzzle you posted I hope smile.gif




  • Registered Users Posts: 3,528 ✭✭✭SickBoy


    Yes I know the answer to this puzzle and if you want I'll mail you and explain it to you.


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  • Closed Accounts Posts: 492 ✭✭Pretence


    Are you saying u have an alternative solution?


  • Registered Users Posts: 21,264 ✭✭✭✭Hobbes


    I don't get it? Your making up the $2.

    They paid $28 for the pizza... $25 + $3 = $28.

    $28 / 3 = $9.3333....etc.

    As your left with a penny, someone made a penny.


  • Closed Accounts Posts: 492 ✭✭Pretence


    Tis the age old problem wit 0.33333, tis infinite so will nevere evenly split, one always gets a penny more on paper


  • Registered Users Posts: 1,241 ✭✭✭Steven


    You are truly evil SB, playing with these poor ppls minds smile.gif. They pay $27 in total (bill of $25+tip of 2). They get $3 back ($30-$3) which leaves them paying $27 aswell. The tip is included in what they pay, not the money they got off. Screwing with ppls heads like that man. You're just cruel cool.gif

    [This message has been edited by Steven (edited 09-06-2000).]


  • Registered Users Posts: 3,528 ✭✭✭SickBoy


    I did mail him explaining it to him Steven smile.gif


  • Registered Users Posts: 2,413 ✭✭✭Toulouse


    Jimmy...I'm still in Limerick...somewhere out there smile.gif


  • Registered Users Posts: 3,528 ✭✭✭SickBoy


    They did pay $9 each. Read it.
    They first paid $10 then they each got back $1 so how can you say they each paid $8.33?


  • Registered Users Posts: 12,309 ✭✭✭✭Bard


    The more I think about this one, the more p1ssed off I am at myself for not remembering the answer... for ****s sake, what is it???

    Bard

    home page


  • Registered Users Posts: 3,528 ✭✭✭SickBoy


    Ok
    The Pizza should have cost $25 right.
    They Paid $30.
    They got back $1 each cause the lad kept $2 for himself.
    This means they paid $9 each totaling $27.
    Now instead of adding $2 to the $27 and being short $1 you subtract the $2 getting the correct price for the pizza $25 smile.gif


  • Registered Users Posts: 12,309 ✭✭✭✭Bard


    oh... of course! wink.gif

    Now I feel even more stupid than before... lol

    biggrin.gif

    Bard

    home page

    [This message has been edited by Bard (edited 14-06-2000).]


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  • Registered Users Posts: 5,335 ✭✭✭Cake Fiend


    I'd say the delivery boy nicked it... can't trust them little b4stards tongue.gif


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