where is the last 1 usd ?

[Jee]

3 guests put up for the night at an inn room which costs 30 dollars per night . Each of them gave 10 dollars to the inn keeper.

But after the 3 ppl back to the room, the keeper asked a waiter give 5 dollars back to them because that day was a Preferential Day ( on that day , they offer discount to all guests) .

The waiter kept 2 dollars for himself, and gave each of the 3 guests 1 dollar.

So each of the 3 spent 10-1=9 dollars . And they 3 totally spent 9 *3 =27dollars . The waiter kept 2 dollars. Finally, it's 27 dollars + 2 dollors =29 dollars . But what they gave to inn keeper is 30dollars totally.

Then where is the last 1 dollar?

 

[Promethium91]

I'll tell you where the last dollar is when you tell me how the fuck this works:

Infracted

 

The three guests have 3$, 1 each from the waiter
The waiter has 2$, because he was given 5$, but he only gave away 3$ out of 5$
The inn keeper has the remaining 25$ because he only gave the waiter 5$ out of 30$.

3+2+25= 30

I win

 

The cost for a room was 25 (5 is originally taken by the waiter), minus 2 for the tip, plus three that is returned.

25+3+2=30?

Edit: dang john

 

[Jee]

all you said is just a way of returnning to the truth. but how to explain the 1 dollar.

 

Because 25 plus 3 returned = 28/3 not 9$ each?

 

Because 25 plus 3 returned = 28/3 not 9$ each?

Well said.
It's not 27/3, it's 28/3 since the waiter only keeps 2$.

 

[SocalOmega]

I'll tell you where the last dollar is when you tell me how the fuck this works:

The bottom left square that gets chopped morphs and gets bigger.
Its just an optical illusion.

 

[Jee]

The bottom left square that gets chopped morphs and gets bigger.
Its just an optical illusion.

Agree!

 

[Adorable]

They each spent $9,that's $27, the keeper has $25 of it, the waiter has $2 of it, its quite the trick question.... But basically, if you overthink the question, you won't understand it. It doesn't add up in the sense if you do 27+2(which is how you try to think of it since you think the question is truly harder than it is), you have to think of it at 25+3+2.

Edit: I GET IT, they all still equally paid, they each spent $9.33 each, that *3 equals 28 + the waiter get $2 for himself which was $.66 from each of them, then they each got a dollar back so they each spent only $8.33 + .66 each for the waiter

So essentially you have to think of them paying for the waiter from the start to understand it. its not 27+2=30, its 27-2=25.

 

[Promethium91]

The bottom left square that gets chopped morphs and gets bigger.
Its just an optical illusion.

Oh thank fucking god, I've finally figured it out.

Now I can stop having nightmares about that. lol. I never noticed that before.

 

[Jee]

They each spent $9,that's $27, the keeper has $25 of it, the waiter has $2 of it, its quite the trick question.... But basically, if you overthink the question, you won't understand it. It doesn't add up in the sense if you do 27+2(which is how you try to think of it since you think the question is truly harder than it is), you have to think of it at 25+3+2.

Edit: I GET IT, they all still equally paid, they each spent $9.33 each, that *3 equals 28 + the waiter get $2 for himself which was $.66 from each of them, then they each got a dollar back so they each spent only $8.33 + .66 each for the waiter

So essentially you have to think of them paying for the waiter from the start to understand it. its not 27+2=30, its 27-2=25.

haha I prefer the first half answer. The content of edit is so exactly and seriously. This is just like an intelligence contest question.^_^

 

[debideen01]

isn't this a mathematical flaw?

 

[Jee]

isn't this a mathematical flaw?

There is something makes ppl confuse.

 

[Adorable]

pm me answer,i'm dying over this...

 

[Jee]

pm me answer,i'm dying over this...

You already got the right answer in your last reply. But let me tell all here again ^_^
Actually, there is no 1usd left. The formula 3x9+2 is incorrect. The guests got 1 usd back from the 10usd which they paid at the beginning, so they spent 9 usd respectively which totally was 27usd spent. The 27usd includes the 2usd which was kept by waiter. The formula should be like this : 3x9 including the 2usd in waiter's pocket.