Solve the Mystery: Where Did the Last Dollar Go?

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The discussion centers around a classic puzzle involving three men who initially pay $30 for a hotel room, only to discover later that the room actually costs $25. After the bellboy takes $2 for himself and gives $1 back to each man, confusion arises when they calculate their expenses. They note that they effectively paid $9 each, totaling $27, and mistakenly try to add the bellboy's $2 tip, leading to the erroneous conclusion of $29. The key point is that the calculations are flawed; the $3 returned to the men should be subtracted from the total amount paid, not added. Ultimately, there is no missing dollar; the breakdown of the costs clarifies that the hotel retains $25, the bellboy has $2, and the men have $3, accurately accounting for the original $30. The discussion highlights the importance of proper accounting in resolving such puzzles.
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So, three men pay for one hotel room which costs $30 each paying $10. Hours later the clerk realized he made a mistake and found out that the hotel room only costed $25, so he sent a bellboy up to the room with $5 to give to the three men. The bellboy realizes that you can't divide $5 evenly among three people, so he takes $2 for himself, tells them it was a tip, and gives each of the men $1.

Later on, the men were balancing their budget and recording what they spent for that day. Their notes read that each man paid $10 at the beginning for a thirty dollar hotel room, but got a dollar back, so basically, it would be as if they each paid $9. Nine times three is twenty-seven and the bellboy has $2 for the tip. collectively, that would make $29.

Where did the other dollar go?
 
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They paid $30. The bell boy kept 2. That leaves $28. He gives the men $3, that leaves $25, which is the cost of the room.

The mistake in this "problem" is that it subtracts 3 but adds the 2, both the 3 and the 2 must be subtracted.
 
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HOTEL 0, BUSINESSMEN +30, BELLBOY 0
HOTEL +30, BUSINESSMEN -30
HOTEL -5, BELLBOY +5
BELLBOY -3, BUSINESSMEN +3

Hotel: +25, Businessmen +3, Bellboy +2

No missing dollar.
 
That's right.

The tricky part is when you add in the false equation with the $9.
 
Megasundato said:
That's right.

The tricky part is when you add in the false equation with the $9.

Just like the Chancellor's Budget, every year, in fact.
 
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https://en.wikipedia.org/wiki/Yang_Chen-Ning ( photo from http://insti.physics.sunysb.edu/~yang/ ) https://www.nytimes.com/2025/10/18/science/chen-ning-yang-dead.html https://www.bbc.com/news/articles/cdxrzzk02plo https://www.cpr.cuhk.edu.hk/en/press/mourning-professor-yang-chen-ning/ https://www.stonybrook.edu/commcms/physics/about/awards_and_prizes/_nobel_and_breakthrough_prizes/_profiles/yangc https://www.stonybrook.edu/commcms/physics/people/_profiles/yangc...

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