The Missing Dollar Riddle

Подписаться 4,6 млн

Просмотров 2,3 млн

50% 1

Kevin explores the math and mystery behind a classic riddle that just… doesn’t make sense. Three friends go out to lunch and split a $30 bill evenly. Each pays ten bucks. Then the waitress realizes the bill should’ve been only $25.
She gives the busboy a $5 refund, but he can’t figure out how to evenly divide five dollars three ways. The customers don’t even know they’ve been overcharged, so he just takes a $2 tip for himself and hands the three customers one dollar each.
If the customers only paid $9 each for lunch and the busboy pocketed $2, where is the missing dollar?!?
Walkingame’s Tutor’s Assistant: archive.org/details/walkingam...
***********
Vsauce2 Links
Twitter: / vsaucetwo
Facebook: / vsaucetwo
Hosted, Produced, And Edited by Kevin Lieber
Instagram: / kevlieber
Twitter: / kevinlieber
Website: kevinlieber.com
Research And Writing by Matthew Tabor
/ matthewktabor
Huge Thanks To Paula Lieber
www.etsy.com/shop/Craftality
Get Vsauce's favorite science and math toys delivered to your door!
www.curiositybox.com/
Special Thanks Eric Langlay
/ ericlanglay
Select Music By Jake Chudnow: / jakechudnow
MY PODCAST -- THE CREATE UNKNOWN
/ thecreateunknown

Опубликовано:

26 июн 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 4,1 тыс.

@tipsgaming8685 5 лет назад

Kevin:how does a dollar dissapear Me:frickin taxes

@ayaso_fia 4 года назад

Tommy Marco r/woooosh

@damadiel9726 4 года назад

*Laughs in credit fraud*

@inyobill 4 года назад

Oh, but you have police, fire and paved roads. poor you.

@andrewmorrison3316 4 года назад

magically 6 dollars disappears in the 2nd one. you have $20 busboy takes 2 making it $18 divide that by 3 and you get back 6 dollars each $4 and $6 are the same to this guy

@inyobill 4 года назад

@@andrewmorrison3316$30 -$5 = $30 -$2 -$3 = $25, what missing dollar?

@ryanandnojo123 5 лет назад

When I looked at the chart at first I was confused cuz I thought Bill was one of the friends. 😂

@xanderleesweet 4 года назад

Bill is that greedy friend that took $25 from you and your other 2 friends!

@a_literal_crow 4 года назад

I thought I was the only one. ._.

@dontclickmyprofilepicture5638 4 года назад

Yo the bill is not a friend but the so believed friend

@noahsduck4109 4 года назад

Same

@kaaiplayspiano7200 4 года назад

Hey Vsause4 Im bill. No? *Y E S .*

@datona5678 5 лет назад

“You just lost a dollar” Bold of you to assume I have a dollar

@xCrysT4L1 4 года назад

So you are poor?

@Max_G4 4 года назад

@@xCrysT4L1 or you just live somewhere where you don't pay with Dollars. For example... all of Europe

@SacsachCCABP 4 года назад

Lol yes

@ninjapanda0822 4 года назад

Bfb_Pencil battle for bfdi

@aaltaccout8126 3 года назад

No no no *Bold*

@HY-ti4bh 3 года назад

So the dude overcharged you and took an extra $2 for himself? The real riddle is why isn’t he fired yet

@zulephizus1212 Год назад

The server overcharged you. The busboy simply took advantage of that info.

@PaleozoicProductions 5 лет назад

Vsauce: Micheal Vsauce 2: Kevin Vsauce 3: Jake Vsauce 4: Bill Vsauce 5: Tip Vsauce 6: Busboy

@droddfellow3926 5 лет назад

VSauce 7 Dr Santachrist the rednosed dollar thief

@inverted_paradox4170 5 лет назад

Vsauce 8 hobo man

@tommymarco9988 5 лет назад

@@ody5199 you get a dollar $

@yohansaldana8218 5 лет назад

Vsauce Aleph Nol 9:Saddam Hussein

@benjidoesstuff 5 лет назад

Vsauce 69: Josephi Krakowski

@yuarkok6273 5 лет назад

EA: You just lost a dollar. *Want us to get that back for 5.99 Dollars?*

@cameronmeetze8153 5 лет назад

Yuarkok 5.99 dollar? You means dollars 😂

@yuarkok6273 5 лет назад

@@cameronmeetze8153 you mean "you mean 5 dollars"

@sniks9901 5 лет назад

@@yuarkok6273 you mean "you mean" "you mean 6 dollars?"

@nekroneko 5 лет назад

@Muhsin Mohammed you mean 10 loot boxes with a chance of getting a dollar back for a dollar each go

@obliviouspotato8545 5 лет назад

@nekroneko you mean “Everybody is now confusion”

@samburger1774 5 лет назад

>its hard because it bombards you with numbers > *2 minutes later, Kevin proceeds to bombard you with numbers*

@supremelordoftheuniverse5449 4 года назад

SamPat yes, and for no reason. All he needed to fix the equation in the answer was to switch the sign of the 2 from plus to minus. 9+9+9-2= 25 (the cost of the meal). Done.

@daerdevvyl4314 4 года назад

Gunnar Thiessen But the point is to explain why the mistake happens in the first place. Just fixing that sign doesn’t do that.

@davidwells9982 4 года назад

I told my students this riddle and it almost started a classroom riot. It was hilarious.

@CaramelliousDa1 2 года назад

My teacher bet us 200 pounds for whoever solves it. It took me a week but I did solve it but he refused to give me it >:(

@asheep7797 2 года назад

@@CaramelliousDa1 he was a busboy, I knew it!

@just-a-silly-goofy-guy 5 лет назад

"You just lost a dollar" My bank account x100

@dracologicalgaming8322 5 лет назад

For me it's more like "You just lost a dollar" Wait, I had a dollar?

@alialidrissi4163 5 лет назад

no u

@GigawingsVideo 5 лет назад

American banking system in a nutshell.

@raidenvakarian9362 5 лет назад

Aaaand it's gone.

@brodiehaddon631 5 лет назад

kremit the frog more like x1000000

@vanskis7618 5 лет назад

Vsauce4 is coming. Vsauce, Bill here.

@mateosebastiancampos7475 5 лет назад

Dont forget Vsauce5. Vsauce, Tip here.

@d3vitron779 5 лет назад

Hey vsauce, coyote Peterson here

@tls5870 5 лет назад

Hey Bill, what's the damage?

@munjee2 5 лет назад

@@mateosebastiancampos7475 Vsauce6, hey vsauce, bus boy here.

@scroogemcfuck8110 5 лет назад

Vsauce5: Vsauce. Tip here.

@thiernodiallo5967 3 года назад

6:06 Kevin: There is no missing dollar. The missing dollar to the side: *sweating profusely*

@pakkiufung883 2 года назад

Lol

@gregoryaggressive132 4 года назад

"I dunno how to divide 5 dollars between them, so i'll take 2 dollars" Brilliant

@onredj4326 5 лет назад

I like to explain this riddle a little differently. Simply, when you perform the mathematical slight of hand of 9+9+9+2, you’re fooling the listener into believing that he must solve for the original $30 that you paid, but this is wrong. What you actually are solving for is 9+9+9-2 which is equal to 25. Once the refund happens, the fact that you paid 30 before is now obsolete information, but the riddle pretends it’s still important. That’s why it works best with 30 because by just changing the sign, you can get a fake result that is one off the original.

@tommyellis7728 5 лет назад

9+9+9+2=29, unless I'm misunderstanding what you're saying.

@onredj4326 5 лет назад

Tommy Ellis Yes, that’s 29, and not 30 because it’s the wrong equation. Instead of +2, the correct math is to -2. And instead of expecting 30 as your answer (deception), you should be expecting 25.

@tommyellis7728 5 лет назад

@@onredj4326 oh, I misread what you said. You did say "-2." my bad!

@R-Cade 5 лет назад

That's what I was thinking and then he began to confuse me by switching the numbers around

@Joe_Potts 5 лет назад

AHHH THIS IS EVEN MORE CONFUSING 😱

@brandonrepo4 5 лет назад

I did this experiment physically and magically lost 1 dollar. Thanks Vsauce 😢

@asheep7797 2 года назад

Well I did it with 30,000,000 dollars, and the BusBoy took $2,000,000, so I lost 1,000,000 dollars!

@zoyadulzura7490 5 месяцев назад

@smitshilpatul314 Are you implying that there's a trick that gets you more chocolate? You have my attention.

@bongoe6997 5 лет назад

You michel and jake are at a restaurant. * Writes you Michel and jake on the table * * writes Bill * Me: WHO IS BILL!!

@sophiamalcolm2119 5 лет назад

It's THE Bill not a person named Bill. Does that help?

@bongoe6997 5 лет назад

Coding Ant IK

@mohammedalkhalili6305 4 года назад

Guys, at first he thought that there was a person names Bill... Easy on the guy

@blitzgaming9561 4 года назад

@@neoupath8823 r/ihavereddit to you too. Using r/ihavereddit outside of reddit is contradicting so don't use it just say "this isn't reddit".

@tilerboston5973 4 года назад

Blitz Gaming r/wooooshception

@steampunkWizardStudios 3 года назад

Your boss explaining why taking that $2 tip was a bad choice:

@NatePunzalan 5 лет назад

You and your friends Michael, Jake, and Bill

@alexwang982 5 лет назад

Nate Punzalan don’t forget tip

@Cg51555 5 лет назад

@@alexwang982 who's tip

@alexwang982 5 лет назад

@@Cg51555 The 5th column

@noah321 5 лет назад

Don't forget Buck

@maciej4250 5 лет назад

Hmph, as I had friends...

@Skelly57 5 лет назад

I’m pretty sure you’ve uploaded more videos in the past month than VSauce 1 and VSauce 3 have uploaded in the past year

@user-ft3jq5vi2l 4 года назад

Teacher: the test isn't even that confusing! The test:

@johnlucas463 4 года назад

Lol common core is literally this riddle

@aaltaccout8126 3 года назад

‎

@jite_o 2 года назад

I remember my friend bringing up the question back in high school (2008). I was able to solve and tell him the problem was in how it was phrased. He never agreed. I just sent him this video (14 years later), with the quote "I was right". 🤣

@juan3141 5 лет назад

*I CAN'T REMEMBER MY PASSWORD FOR LASTPASS*

@lydianlights 5 лет назад

*SHOULD'VE STORED YOUR LASTPASS PASSWORD ON LASTPASS*

@1ava 5 лет назад

*WRITE IT DOWN ON PAPER AND KEEP IT IN A SAFE OR SOMETHING*

@benrosen5917 5 лет назад

*f*

@bruhbbawallace 5 лет назад

Name related

@Svmmyy 5 лет назад

@alex bynum have you tried using last pass

@andygarcia7784 5 лет назад

I don’t need to worry about having this problem because I don’t have any friends

@matrixphijr 5 лет назад

I don’t need to worry about having this problem because I don’t have any dollars.

@tommymarco9988 5 лет назад

@@dbwww6774 hang on... It's not a double negative... but I do not know what it is. help pls

@cherry.berry2 3 года назад

Me at first: Wait that's illegal Then: Oh I see, this is easy After explanation: Now I'm confused again

@user-B12 2 года назад

i have known this riddle for almost 20 years. i was at home and came my nephew with a bunch of unsolved riddles in a book and we stumbled upon this one that amazed us, to the point i still remember it 20 years later! lovely video Mr.V 🤓

@penguinmaster7 5 лет назад

"Your abilities with numerical cognition are actually pretty good" that's not what my grades say...

@silviafox78 5 лет назад

teach yourself. School is for brainwashing not for teaching you numerical cognition.

@darkmario720 5 лет назад

True story school is only useful for jobs not education teach yourself but still go to school

@silviafox78 5 лет назад

@@darkmario720 yeah only go to school for your "achievements" like your diploma and such because businesses like that :)

@mew2eight773 5 лет назад

teachers: teach you how to square root a negative number with imaginary numbers student: how will we use this? teacher: *visible confusion*

@nousername12127 5 лет назад

@@silviafox78 would you rather not even have the opportunities for education like people in some countries

@ethanlegler6403 5 лет назад

So we're just going to gloss over the fact that the bus boy committed burglary? Edit: Sorry all, but I couldn't remember the word "theft" when i wrote this comment.

@petrusandersen198 5 лет назад

Dude the customers can't count! Ain't going to jail if no one snitches.

@wiiztec 5 лет назад

Not unless he broke into the customer's houses later to get that $2

@andresgonzalez7911 5 лет назад

@@wiiztec And that would be burglary and theft :)

@TMPreRaff 5 лет назад

Burglary is 'entry into a building with intent to steal'.

@andresgonzalez7911 5 лет назад

@@TMPreRaff not nececarally, burglary and theft are two different crimes for a reason, burglary itself is just to enter a building illegally, theft is taking something from someone without their consent. Next time you Google burglary, google the "criminal justice definition" thats the realy one my guy.

@danielsmith4525 2 года назад

I love how you just tell what the problem is and just do it. You don’t make people wait to start

@203maxwell 4 года назад

Moral of the story: leave a 20% tip.

@murder7415 4 года назад

Moral of the story : don't tip. Move to any country where tipping isn't mandatory. Why must you, a consumer, pay the wages of an employee? That's the employer's job!

@darrencrissistotallyawesom918 4 года назад

@@murder7415 Where do you live? Asking for a friend

@arikwolf3777 3 года назад

@@murder7415: I don't know why we tip anymore. Since the wait staff is getting $15/hour, "the living wage", they don't need tips to live. Also, if you do tip, don't include the taxes in the tip calculation.

@jalexoneschanel1356 3 года назад

@@arikwolf3777 the wait staff doesn’t get that much. Everywhere in the US tipped positions, like wait staff, are paid less than minimum wage. Disabled people can also be paid sub minimum wages by their employers regardless of whether it’s a tipped position or not. Gotta love the US.

@arikwolf3777 3 года назад

@@jalexoneschanel1356: As long as a person make $30 in tip for the month, the employer can pay that person below minimum wage. The exceptions are CA, NV, OR, WA, AK and MN. Everyone gets state minimum wage before tips. I will not tip in those states.

@chevrotain 5 лет назад

Me an intellectual: well it's pretty obvious. There's some random 4th dude called Bill.

@markenangel1813 5 лет назад

BILL NYE THE SCIENCE GUY

@JNCressey 5 лет назад

Bill (the chad): stole the dollar and yo' girl.

@laysone346 5 лет назад

@@JNCressey I nearly choked on my drink

@alexwang982 5 лет назад

And Tip. Only pays 2 dollars

@YellowToad 5 лет назад

@dimityrlefterov4877 5 лет назад

,, YOU Just lost a Dollar'' - Jokes on YOU Im from Europe, I DONT use Dollars!

@rodrigo-hj7ol 5 лет назад

Then the title would be "The Missing "insert all currencies here" Riddle"

@blaise6553 5 лет назад

You also don't use memes

@rodrigo-hj7ol 5 лет назад

Dimityr: Am i a joke to you?

@laarrsiavelli 5 лет назад

Better joke is that ya'll don't tip.

@MrDannyDetail 5 лет назад

A 'Euro' is actually, to give it it's full name, a European Dollar, so there's a good chance you do in fact use Dollars! Admittedly it depends where in Europe you are though.

@randomsquidproductions4061 4 года назад

Where'd the dollar go? Kevin: that's Dallas.

@tylerjanesprime 3 года назад

Great video as always Vsauce!! This riddle is a perfect example of how people, both intentionally and unintentionally confuse facts and logic in our real lives resulting in stress, anxiety and confrontation with others.

@keilanodriscoll822 Год назад

Yes

@redspin2ify 5 лет назад

Anyone seen this riddle before but literally forgets the solution every time you see it? Its blown my mind like 5 times in my life, deja vu is real

@EGRJ 5 лет назад

I didn't even get it the first time I heard it a long time ago. This time I was listening to Kevin explain and about halfway through I went "wait, that's not what you do with the $2."

@sebione3576 5 лет назад

I love you for making me realize I'm not the only one who's done that.

@DirtmopAZ 5 лет назад

Yeah...Kevin did this already

@snowfloofcathug 5 лет назад

I have that sometimes, like the second time encountering this phenomenon, but when he puts “9 9 9 25 2” it was *really* clear to me that it was 9+9+9=25+2 before he had even said 27, so luckily I didn’t need a _third_ epiphany on the same trick

@HotDog-yf2je 5 лет назад

yeah but once you see it its so simple, you paid 27$ with the tip, , so that is 9+9+9, ? i dont even get how i got confused

@Tone720 5 лет назад

Never mind losing a dollar, I'll buy that for a dollar.

@themc3311 5 лет назад

You get a like because I understood that reference. Anyone else?

@beefcakeandgravy 5 лет назад

@@themc3311 I drove up in my 6000SUX just to understand a second layer to the reference

@dustinmoe4985 5 лет назад

Ill buy it for a dollor and 5 cents

@wes2891 5 лет назад

Dustin Moe one dollar and six cents

@EvilishDem0nic8732WhatItDo 5 лет назад

Robocop reference btw

@stenquist1 Год назад

I've been enjoying your videos for a few years. Thanks

@anthonystamm8890 3 года назад

Hi I'm Tony ,I sent you this riddle a year or so ago only I use 3 businessmen in my example. Also asked others and you are the only one who even attempted a answer thank you. I'm going to watch video again and try to understand more . This and lots of your other topics interesting and enjoyable but need to sit back and think, or figure out. Ok thanks again.Tony

@SpikeViper 5 лет назад

The Missing Comment Riddle

@brokenwave6125 5 лет назад

There are no replies on this comment.

@noelarreola5641 5 лет назад

*Where are the missing replies?*

@awawpogi3036 5 лет назад

There is one missing reply out of 4

@Ignacio.Romero 5 лет назад

You're everywhere!! Hail vooperia

@sdm000 5 лет назад

*TRUE AF!* Especially when the video is just uploaded. *OH!* Don't forget that "50 likes, 20 views" thing

@RyanHelbig 5 лет назад

It's quite simple. The $27 they paid includes the $2 tip... You can't add them together.

@kaktuslieferant218 5 лет назад

thank you

@rohanmodi1808 3 года назад

I figured this out after pausing the video and thinking it about it for 5 minutes. I am very proud of myself.

@ninasegauddumont8000 2 года назад

Me too !

@rosem8964 4 года назад

Oh my goodness, you're so funny!! Laughed almost entirely in the whole video xD !! It's so funny on how the numbers u said that supposedly confuses us and making us rush into not knowing the answer and tbh i did say 30 in my mind and then u said 30, and I started laughing of amazement!!!💓👍

@craigbenedict7142 5 лет назад

My dumbass though 'Bill' was a friend too

@joejohnstone3170 5 лет назад

Liam Fauve dont use words you can't spell, especially when you're trying to insult someone.

@craigbenedict7142 5 лет назад

@@joejohnstone3170 oof

@kingcrimson293 5 лет назад

@@joejohnstone3170 r/woooosh

@user-gx6sg4tb9s 5 лет назад

And that’s how YOU lost the dollar 😂

@Tortle_owo 5 лет назад

Joe Johnstone r/woosh

@TristanBomber 5 лет назад

Paused at 2:09. My "solution" is that there is no reason to expect the total "before" and the total "after" to be equal. In the "before" scenario, $10 + $10 + $10 = $30. In the "after" scenario, $9 + $9 + $9 = $25 + $2. Everything's fine, the equations are equal, and there's no missing dollar. The reason the "riddle" exists is because the $2 is placed on the wrong side of the equal sign - we're putting it with the customers, when it should actually be with the bill. We're asking "why isn't the $29 equal to $30?" when in fact there is no reason to suppose that it should be.

@IsaacPrinTheNerd 5 лет назад

YES, YOU SEE IT TOO! It was $30-$3 for $27 that they actually paid. Can't believe he got this so wrong. ....On Purpose

@carrjeep7538 5 лет назад

Thank you. I understand your analysis. I didn’t understand the video at all.

@bohnec1 5 лет назад

Totally 9 + 9 + 9 - 2 = 25, and those 5 dollars of overpay is then 30

@supersaiyancaleb7107 5 лет назад

This is where my mind immediately went too. I was just like... "WTF... You don't know how to math! You're putting the wrong numbers in the wrong places!"

@bernt1997 5 лет назад

- 9 - 9 - 9 +2 = -25, all four paid 25 that is. and the driver got + 25, that is the logic used first (30 - 10 - 10 - 10 = 0) and (25 - 9 - 9 - 9 + 2 = 0) there is nothing wrong here. and the next one should be ( 10 - 4 - 4 - 4 + 2 = 0) he simply forgets that the total amount paid should be negative.. not posetive

@dee.f88 3 года назад

14 years ago when i was 18 years old,, I went into the construction industry. One morning I went into the port-o potty (probably to hide) and I sat down. There in front of me, written on the wall was this entire riddle. It blew my mind to this day and I always appreciated the fact some random worker took the time to write this riddle word for word in great penmanship too lol!

@adnankassem8114 3 года назад

my dad told me this riddle when I was a kid. I was bewildered at the time -but then he explained how it works to me. I cant believe I found this on RU-vid!!! Reminded me of my awesome childhood - thanks

@Xperim 5 лет назад

Glad that Kevin is keeping Vsauce alive.

@mosab643 5 лет назад

Yeh, he didn't sell out like his senior.

@ophigreen2096 5 лет назад

@@mosab643 Hmm?

@mosab643 5 лет назад

@@ophigreen2096 I'm talking about Mr. Stevens.

@2600slumedout 5 лет назад

I checked my wallet when he said that I lost a dollar. You never know with this guy. Good vid

@_deletus_ 3 года назад

Bro. He said not literally.

@mischievousmarker6616 3 года назад

It’s a joke :|

@puspamadak 3 года назад

😂😂

@nali3917 4 года назад

I looked for a video like this because the substitute in my history class told us, "if you can solve this math problem, then I'll leave a good note for your class." This is literally the exact same problem, but different scenario

@Cc99117 2 года назад

Thanks for this. An inside look into how easy it can be to be hoodwinked through numbers!

@animallife4803 5 лет назад

Lmao I asked my teacher this question an here's what she said: Me: *explains question* Me: So where is the missing dollar? Teacher: In my pocket.

@cutechubbypanda8094 4 года назад

Ahahahha

@aedanhogan3744 4 года назад

😐

@sashimiroll5055 4 года назад

*MOOD*

@whatisthis2809 4 года назад

@loocuh just laugh and leave

@liam.28 3 года назад

@loocuh probably but it’s funny

@davidgrandm453 5 лет назад

I get it now! 27$ plus the 2$ tip, plus one Bill equals 30$

@anedge6706 5 лет назад

What?

@jerrylin7221 4 года назад

Yes einstein here

@kenbrohere 3 года назад

The riddle assumes a 26 dollar bill.

@ryanmarmol152 4 года назад

I'm glad I kept watching because I almost clicked off the video once I realized the math you did was wrong, but then you later explained that it was part of the riddle and meant to confuse.

@yusurkassem4174 5 лет назад

I was literally confused at the start I thought four people went out one of them named Bill😂

@ShlokParab 3 года назад

Not just you, almost everybody. I thought it was name of the restaurant's manager.

@yusurkassem4174 3 года назад

@@ShlokParab lol😂

@stevensegal6290 5 лет назад

*MR. KRABS HAS ENTERED THE CHAT*

@sebione3576 5 лет назад

Aaa-kakakakakakakak.

@user-bw6pk4tg1d 5 лет назад

I'm finna steal this comment

@johnmburu3495 5 лет назад

One, you put the dollar in me pants, two, you put the dollar in me pants, or three, you put the dollar in me pants!!!!

@aimeeford780 5 лет назад

*Me on the outside* :ohhhh, I get it!! *Me on the inside* : what the actual heck?!?!?! I’m so confused

@bpao3271 4 года назад

@@neoupath8823 lol me 2

@LynkJRayvonn 4 года назад

When he said I lost a dollar I instinctually looked at my wallet, even though I don't have any cash.

@reywashere5284 2 года назад

"Where is the missing dollar?" "If I knew, then it wouldn't be missing, would it?"

@TonyMacaroni69_ 5 лет назад

I hate it when I'm eating something crunchy and I can't hear the TV anymore

@Regs3000 5 лет назад

Amen

@electricbird8993 5 лет назад

SwissSpace uhhh ok

@ethancal381 5 лет назад

It’s worse with earbuds

@jonathanouyang 4 года назад

@@ethancal381 Omg it's so bad. It like amplifys it.

@Tarkov. 5 лет назад

I've seen IRL where people do these quick-math problems and cause intentional screw-ups to their own benefit. We called them quick changers, where a guy would hand you $100 for his bill, get his change back, and then say "oh I have a 20, here, give me back the $100." So he hands you a $20, takes his $100 back but doesn't give you back the change. Then while the cashier is confused as hell, he walks off with his purchase and something like $100 profit.

@knownas2017 5 лет назад

Yep. Never do multiple transactions at once.

@wzdew 5 лет назад

It's a little more convoluted than that. Say you pay $5 for a beer with a $10 bill. The bartender hands you back $5. You take it and then say, "Oh, before you close the till, I have some dollar bills that will make it even", and you hand them 5 $1 bills and receive the $10 back. You end up with a free beer. The confusion comes from doing multiple transactions simultaneously and double counting the $5. Basically, in the bartenders mind, you paid $10 + $5 in ones and got $10 back. It's a classic small con.

@Tarkov. 5 лет назад

@@wzdew Yeah I was having a hard time putting it into words, but exactly this.

@Codemarla 5 лет назад

Yeah, I got caught out by that once when I was a kid and got my first bar job. Someone tried it a 2nd time though and I had learnt ny lesson and called them out on it.

@owiqhsbdbdj5239 4 года назад

when he said "you just lost a dollar" im crying in a corner because i lost my whole life savings

@knvids2812 3 года назад

A few years ago my great uncle gave me this very question and now the next time I meet him I can tell the answer.Thank you Kevin!

@TheDisabledGamersChannel 5 лет назад

Kevin, Kevin here, thank you for the 6 months of bit defender free on your last video, it's an awesome program, ty.

@johnyliltoe 5 лет назад

I love it myself. Already had it, so no free trial for me, but it works well on my computer and the anti-theft features on my phone are a nice bonus.

@gFamWeb 5 лет назад

Shorter version: The refund was 5 dollars. So you took the original payment, subtracted 3 of those dollars but then added the remaining 2 dollars back. That makes no gosh darn sense. Slightly longer version: 10 + 10 + 10 = 30 Whoops the bill was actually 25 dollars so subtract 5 from both sides to get the actual bill 10 + 10 + 10 - 5 = 30 - 5 Now lets separate out the different payments and simplify the right side (10 - 1) + (10 - 1) + (10 - 1) - 2 = 25 See we subtracted the first three dollars of the refund, but we need to continue to subtract the other two So now we get: 9 + 9 + 9 - 2 = 25 Which becomes 27 - 2 = 25 That's the whole thing. Bing bang boom. No nonsense about "considering the $3 twice"

@anavejar08 5 лет назад

SysPowerTools same, it’s simple math

@Ridz149 4 года назад

0:18 this view makes me really uncomfortable

@jaycie5021 4 года назад

I'm an accountant so I did the math quickly with credits and debits. Then thought "I wonder how he's going to show me up" answer you didn't. . . for once. Nice being a relevant expert for one of these questions.

@Tata-iu3fy 5 лет назад

The whole time I was like NO! You’re counting it all wrong! 😂

@CarmsCelestia 5 лет назад

@Shakthi Udana Yeah, it's kinda irritating to watch when you're not fooled by the riddle.. I was there the entire time like... "27-2 is 25, thats exactly right, why tf do you wanna add them? The three missing is what you gave back"

@Rorius 5 лет назад

Oh totally, I'm here like "why you keep adding the tip to the paid total, it's already in there" xD

@yoyay123 5 лет назад

literalllyyylylylylylyylylyl

@gramcrackag6342 5 лет назад

yes. i thought i was missing something so i stayed until i was just told what i already knew (the answer)

@Cae_the_Kitsune 5 лет назад

Yeah, it's not really a riddle. The premise contains an obvious error.

@Diabhork 5 лет назад

Secretly, I put the missing dollar in my pocket and ran

@scream1421 5 лет назад

This honestly totally changed my mind. I thought I was fairly good at math and thought it was going into the register but I never considered adding the tip to the total.

@pradyumnakatageri3475 2 года назад

This totally happens when my group of friends go out somewhere but we dont pay for our own stuff.. Only 2 of our friends end up paying in the spot. But later on when we try to calculate who owes whom how much, It generally takes us 2 days to reach a consensus 😂

@jacoboribilik3253 2 года назад

Hahaha extremely relatable. It seems we all have gone through that sort of experience at least once.

@thelastcube. 5 лет назад

Back when I was a kid, I used to get mad because I couldn't solve this one, after a while putting the numbers on a paper I was mad because how dumb this was and how tf I wasn't able to solve this This riddle makes me mad It's my favourite

@eamonnmclaughlin7689 5 лет назад

so I still have $6.16 in my bank

@mvvtteblvck 4 года назад

I don't know if I am the only one who is realizing this but at 3:39, the answer is there because if you pause and look at the top-left of the video, it will flash you a 158. I rewinded to point 1:58 and he talks about 30 dollars. He gave you the answer and then at 4:12 my suspicions are confirmed. That was clever on his part. Did anybody else notice this??😭✨

@amphitrichous 3 года назад

My dad told me this riddle when I was a kid 30 years ago. How did he hear about it before RU-vid? Thanks for bringing it back and explaining!

@davidsai1286 5 лет назад

wait but it's 27-2=25...

@pathetik 5 лет назад

he said plus 2

@davidsai1286 5 лет назад

@@pathetik yes, but logically, you would subtract two.

@scooper5046 5 лет назад

Yes, that's basically the answer.

@asheiou 5 лет назад

But it was split amongst 3 so the dollar didn't at all go missing

@dylanblake5585 5 лет назад

Yes, but actually no

@will4not 5 лет назад

I love how you break these riddles and paradoxes down.

@jrc1064 3 года назад

The missing server question, and the bus boy doing all the work. Remind me of working in the industry.

@legendgames128 4 года назад

"You just lost a dollar" Me: Hang on, OH! You're right! I did lose a dollar!

@noob_ukko2771 5 лет назад

i remember my dad telling me this like 4 - 5 years ago and me being a kid, i didnt understand and thought that they dropped a dollar or something :p

@Arcanilumia 5 лет назад

"You just lost a dollar" I have money?

@twilightundersky8658 4 года назад

No, you don’t. You know why? ‘Cause you’re broke.

@richardwatson5437 2 года назад

Was told this riddle two decades ago and was never smart enough to figure out what was going on. So glad to have finally found an intelligent answer.

@Bryndela 3 года назад

My grandfather told me this riddle when I was a kid and I was so mad I couldn't figure or out. I spent so much time writing it down and trying to figure it out while being confused as hell. Even after he explained it😅. RIP grandpa I will pass ir on to my own children in your memory.

@sarcasm-83 5 лет назад

Loving the frequent uploads :) Thanks Kevin, good stuff. Happy holidays.

@visibleconfusion9894 5 лет назад

no idea what you were talking about during most of the video but i enjoyed it

@carltonleboss 5 лет назад

Damn, first reply

@emilandreasson9670 5 лет назад

Same tbh

@spread2081 5 лет назад

Welcome to vsauce

@nome3795 5 лет назад

Every vsauce video

@DizV71 5 лет назад

Lol

@carni7369 4 года назад

I thought Bill was one of your friends at first.

@ThorsShadow 3 года назад

Thank you for revealing why the "missing dollar" equation is BS. I always knew that it is just calculated wrong but could never put my finger on it. That's actually what confused me most about it. The fact I knew it was wrong but couldn't explain why.

@alexbuczala8749 5 лет назад

Shouldn't you be subtracting the 2$ tip instead of adding it?

@SedateGaming123 5 лет назад

Alex Buczala thats another answer

@vwgolfg9353 5 лет назад

Yeap

@babelfishdude 5 лет назад

Yup, "tip" is not what it is, the guy "stole" the $2. That might make it a little bit easier to understand. Stole also signifies that they were unaware of the transaction, and its size.

@MegaDudeman21 5 лет назад

@@babelfishdude that doesnt matter

@MaGFarqui 5 лет назад

Yayyyy! Vsauce2 and the create unknown uploads on the same day!

@HelloIAmAnExist 2 года назад

One of the only videos on vsauce I can say I knew the answer to as he explained it

@pihi42 7 месяцев назад

It's a great illusion. I needed more than 30 seconds to realize what happened. But once I had the correct picture, I couldn't understand what was I surprised by in the first place. Kudos to the original author.

@rb1471 5 лет назад

Got me at first with the presentation but then I realized you did this: 9 + 9 + 9 + 2 = 29$ which is false, the 2$ is part of the 9 + 9 + 9. So really the answer is (9 + 9 + 9) + 3 where (9 + 9 + 9) includes the tip and the 3 is the returned dollars.

@soniakangaju8848 5 лет назад

Kevin: *explains the problem* Where's the missing dollar?? Where did it go??? Me, a beginner at economics: That is NOT how bookkeeping works, but okay

@SamMcPieVTOL 3 года назад

The moment he added what they spent and the tip, I just sighed and seeing the fact that so many people were stumped by this makes me disappointed haha.

@user-zn8fm8kw5v 5 лет назад

4:09 i got 30 at the exact same time as you to the millasecond

@Chananasplit 3 года назад

I knew of the riddle from a call the mid wife book and have known of it since I was 13, I eventually figured it out on my own, but I am much thankful to this video.

@bradleybroekman7915 5 лет назад

Shouldn't the second scenario be 6 times 3 making 18 and the waiter takes 2 that gives you 20$?

@Mushroomlau 5 лет назад

You can keep the change.... I can't do math.... HAHAHA

@nyther 5 лет назад

we have about 3 cameras here but let me use the one above my head to do the sponsor talk

@mango.recycle 5 лет назад

My math teacher presented us with this riddle and I thought about it all day and I was so proud of myself when I had figured it out. When watching this video, however, I had forgotten the answer and had to stop the video and figure it out again =p

@SupremeLeaderKimJong-un 5 лет назад

F to pay respects to the dollar

@user-bw6pk4tg1d 5 лет назад

@nolan9101 5 лет назад

@icancounto9994 5 лет назад

Why pay respect to government debt?

@dead_warrior_wae 5 лет назад

And that's the reason why I'm skeptical about my friends bill "division" every time we go out.

@ManuSankaran2410 5 лет назад

I got it like this: There are three splits. Either all are equally split or two of them are unevenly split in counteracting ways. Either you have A,A,A ;B,B,B /OR/ A/B/B;B/A/A, Resulting in AB,AB,AB. In the first equation, the two dollars cannot be split evenly among 3 people. If two pay for the tip, they need to be refunded 1$ extra.