Math Brain Teaser: Where is the $1?

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In summary: The bellboy has $2, totaling $29. The remaining dollar is a trick and is not actually missing. It is accounted for in the $27 that was paid to the hotel and the $2 that the bellboy kept.
  • #1
Eric DMC
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Three people check into a hotel. They pay $30 to the manager and go to their room. The manager finds out that the room rate is $25 and gives $5 to the bellboy to return. On the way to the room, the bellboy reasons that $5 would be difficult to share among three people, so he pockets $2 and gives $1 to each person. Now, each person paid $10 and got back $1. So they paid $9 each, totalling $27. The bellboy has $2, totalling $29. Where is the remaining dollar?
 
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  • #2
Eric DMC said:
So they paid $9 each, totalling $27. The bellboy has $2, totalling $29.
Hint:
"Paid" = apples
"has" = oranges
oranges can only be added to oranges
 
  • #3
DaveC426913 said:
Hint:
"Paid" = apples
"has" = oranges
oranges can only be added to oranges

Count how much money each person started with and how much each person ends up with.
 
  • #4
Eric DMC said:
Count how much money each person started with and how much each person ends up with.
You know how to read obscured text, right? Select the word "Hint:" - and everything after it...
 
  • #5
This is actually really simple...

Explanation in white.

This is a trick, really. There are thirty dollars in total. The bellboy takes two, leaving twenty eight dollars. He then gives one to each of the three, leaving twenty five dollars that have been paid. Each person PAYS $9, totaling $27, and then the bellboy takes $2 from that, leaving $25. In total, they paid $25 to the hotel and $2 to the bellboy -- which is $27 total, hence they paid $9 each. The extra three dollars they got in return are invisible, they paid $27 total ($2 to the bell boy, $25 to the rooms,) and now have an extra $1 to pocket.
 
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  • #6
the answer is much simpler than anyone thinks, its just a trick as far as the wording goes. there are two ways to solve this.
1. with math its quite simple. they payed 25 dollars so 25/3 = ($8.333... + 1 [the one they got back]) x 3people = $28 and the bellboy has 2 so that's 30$

2. simple really... the bellboy has 2, the people have 3, and the manager has 25 which in total is 30
 
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FAQ: Math Brain Teaser: Where is the $1?

1. How can there be a missing $1 in a math brain teaser?

It is a common misconception that there is a missing $1 in this brain teaser. In reality, the total amount of money remains the same throughout the problem.

2. Why is it important to pay close attention to the wording of the problem?

The wording of the problem is crucial because it can lead to misinterpretation and confusion. In this brain teaser, the specific phrasing of the question can make a big difference in the solution.

3. Is the solution to this brain teaser purely mathematical?

No, the solution to this brain teaser requires both mathematical skills and critical thinking. It involves understanding the problem, identifying any hidden information, and using logic to come up with the answer.

4. Can this brain teaser have more than one solution?

Yes, there can be multiple solutions to this brain teaser. It all depends on how the problem is interpreted and solved. However, there is typically only one most commonly accepted solution.

5. How does this brain teaser relate to real-life situations?

This brain teaser reflects the importance of careful reading and attention to detail in problem-solving. It also highlights the need for critical thinking and logic in finding solutions to complex problems, which are valuable skills in many real-life situations.

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