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Math is broken
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03-05-2010, 10:57 PM | #1 |
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Math is broken
So I was told this today at the gym.
Three guys walk into a hotel and tell the manager they need a room. Each person hands the manager $10. The manager says, "Sorry, the room is $25 / night." One of the men says, "that's fine, give us each back $1 and keep $2 as a tip." How much did each of the three men spend? How much was given to the manager for a tip? Do the math...anyone notice a problem? |
03-05-2010, 11:16 PM | #2 |
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Total 30 dollars in the beginning.
Each person gets one back so the manager has 27 dollars there. Since they can't split the last 2 evenly amongst the three men the manager keeps the 2 dollars. The manager gets $2 and the men spent $27. Where did the last dollar go? is the problem |
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03-05-2010, 11:21 PM | #3 | |
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$30 with the manager...$3 go back to the guys, $2 to the manager. $9 * 3 = $27 + $2 = $29... It baffles me how this can't reconcile. |
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03-05-2010, 11:22 PM | #4 | |
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Room = $25. Manager given $30. Tip = $2. Each man gets $1 back. 25 + 2 + 3 ---- 30 what is the problem?
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03-05-2010, 11:29 PM | #6 |
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It's all about approaching it the right way. Like a lot of things in life.
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03-06-2010, 12:04 AM | #8 |
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03-06-2010, 12:16 AM | #9 |
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There is no missing dollar.
Original price of the hotel is $25.00 It appears to be missing a dollar, but its not 3 men spent $10.00 = $30.00 - $27 = $3.00 refund to each, -$2.00 for tip = $25.00 Original Price of hotel. Don't calculate the tip before the original cost. I think. lol My head hurts
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03-06-2010, 05:13 AM | #10 |
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too late for this lol
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03-06-2010, 07:58 AM | #11 | |
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By the way if anybody thought I didn't get it I already had figured it out. |
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03-06-2010, 10:33 AM | #13 |
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Yeah I really don't understand the problem here. Works out fine for me?
$10 x 3 men = $30 $30 total - 3 x $1 refund = $27 $27 includes the original price of the hotel room ($25) and the $2 tip that the manager will retain. $27/3 = $9 that each man spent So now backwards, just to make sure: 3 x $9 = $27 + $3 refund = the original $30 Looks fine to me? What's the problem?
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03-06-2010, 10:41 AM | #14 | |
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03-06-2010, 12:03 PM | #15 |
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For people that don't fully understand it yet still
3*9 = 27 - 25 og price = 2 dollar tip is already rolled into the total amount the three people paid .. The difference is the 3 dollar refund . No missing dollar! Lol... I just realized this after I couldn't sleep
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03-06-2010, 12:26 PM | #17 |
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you're all missing the point - what the hell are 3 guys doing in a hotel room that goes for $25/night???
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03-06-2010, 02:07 PM | #18 | |
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03-06-2010, 03:04 PM | #20 |
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Each pay $10 = $30 Their change is $5 All three pay $25 or the cost of the room, 25/3 = $8.33 per person... They each receive a dollar back, so $9.33 per person... 9.33x3= 27.99 and they leave a $2 dollar tip, so $29.999999999999999... What's the lol about??? |
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03-06-2010, 04:09 PM | #21 |
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Why are three guys getting a $25 hotel room together?
That's what I notice is wrong.
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03-06-2010, 04:15 PM | #22 |
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Its wrong. Why would you add the 2 dollar tip in twice? 25 (room) +2 (tip) = 27 +2 (tip) = 29 thats the tip twice ..... Anyways reminds me of an old one, Here goes: You have a bag of 20 marbles, 10 are Red and 10 are blue. You reach into the bag and pick a marble without looking. You repeat this 10 times. Of the 10 times you reach into the bag, you pull out a blue marble 6 times, and a red marble 4 times. What are the odds the next marble will be blue?
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Last edited by Optherion; 03-06-2010 at 04:21 PM.. |
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