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An Easy Mind Problem: 9/11/2015 01:46:57

Darth Darth Binks
Level 56
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I know what you're thinking.

> Martian
> Easy Problem
> Pick one

but I assure you, this is literally nothing compared to my other questions.

At a festival, there is a drink stand that sells regular and diet cola. The regular sells for \$1.00, and the diet sells for \$0.75. A man walks up to the stand and gives the person running the stand two quarters (\$0.25 each), four dimes (\$0.10 each) and two nickels (\$0.05 each). The stand owner gives the man a regular cola and they go about their day, without saying a word, aside from "thanks" and "take care."

How did the stand owner know to give the man a regular cola?
An Easy Mind Problem: 9/11/2015 01:55:37

Cata Cauda
Level 58
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\$0.25 * 2 + \$0.10 * 4 + \$0.05 * 2 = \$1.00
\$1.00 = regular cola.
An Easy Mind Problem: 9/11/2015 02:00:17

Darth Darth Binks
Level 56
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I think you know why, but you have to state why that matters.
An Easy Mind Problem: 9/11/2015 02:05:45

Gen. NumbNuts
Level 48
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That's not exactly true. True the man has a dollar and could easily afford the regular soda, but he could have easily wanted a diet soda. Nothing was said. So how did the stand owner know which the customer wanted?

I want to think there is more to this but maybe I'm over analyzing.

Am I on the right path Martian or am I showing myself an utter fool right now?
An Easy Mind Problem: 9/11/2015 02:06:58

Darth Darth Binks
Level 56
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It's obvious that it adds up to \$1.00. Why didn't the stand owner so sure he wanted the regular, instead of the diet?
An Easy Mind Problem: 9/11/2015 02:09:47

Darth Darth Binks
Level 56
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You are on the right track, General. But did the man really want a diet soda?
An Easy Mind Problem: 9/11/2015 02:12:10

Gen. NumbNuts
Level 48
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No I don't think he wanted a diet soda. Otherwise he probably would have said something had the stand owner given him one.

He did say thanks...
An Easy Mind Problem: 9/11/2015 02:21:39

Darth Darth Binks
Level 56
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So how did the stand owner know? He had no words to go off of.
An Easy Mind Problem: 9/11/2015 02:23:10

Gen. NumbNuts
Level 48
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I'm gonna say it's because he walked up to the stand instead of waddling up/rolling up. Ie. Customer is skinny/medium and not fat. That's my guess.

I've prepared myself for whichever outcome.
An Easy Mind Problem: 9/11/2015 02:56:44

Darth Darth Binks
Level 56
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You fail.
An Easy Mind Problem: 9/11/2015 03:10:11

JSA
Level 59
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Why would the man give the owner that change if he wanted a diet coke? All he had to do was take out a quarter, and he would get the diet coke. But he chose not to keep that quarter, signifying that he wanted a regular coke.
An Easy Mind Problem: 9/11/2015 03:18:07

Darth Darth Binks
Level 56
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And JSA swoops in to take the win.
An Easy Mind Problem: 9/11/2015 05:03:02

[REGL] Pooh
Level 60
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The guy's shirt said, "I only drink regular cola."
An Easy Mind Problem: 9/11/2015 06:35:46

Blank
Level 36
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But what if the shirt was there to lure people?
An Easy Mind Problem: 9/11/2015 07:43:45

Thomas 633
Level 56
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He might have being getting rid of change.
An Easy Mind Problem: 9/11/2015 10:51:00

wct
Level 56
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They were out of diet cola.
An Easy Mind Problem: 9/11/2015 10:52:34

wct
Level 56
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The man was a frequent customer, hence the familiar chit chat, and the understood order of 'regular cola'.
An Easy Mind Problem: 9/11/2015 10:54:14

wct
Level 56
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The festival loudspeakers had just announced that the man was diabetic and had extremely low blood sugar, so the stand owner knew that he would need the regular and not the diet.
An Easy Mind Problem: 9/11/2015 10:56:32

wct
Level 56
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The stand owner was Sherlock Holmes and knew, by way of a rather ingenious deduction that the man was allergic to aspartame, the most common diet sweetener in colas. So he served him the regular.
An Easy Mind Problem: 9/11/2015 10:58:05

wct
Level 56
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The stand owner recognized that the man was Ebeneezer Scrooge, who would never tip; therefore he must have been expecting to pay exactly the full price, i.e. a regular cola.

Edited 9/11/2015 11:00:59
An Easy Mind Problem: 9/11/2015 11:27:28

Darth Darth Binks
Level 56
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An Easy Mind Problem: 9/11/2015 11:48:25

Gen. NumbNuts
Level 48
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I accept my failure and hope to grow in my deduction and reasoning. May the power of my belly and North Korean awesomeness vaporize you all!

It was pretty simple answer actually. I thunk too much about it. That always seems to be my problem :/ any who that was fun while it lasted. Felt like an Asian Sherlock Holems.
An Easy Mind Problem: 9/11/2015 12:53:38

wct
Level 56
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JSA's answer doesn't explain how the stand owner 'knew' that the guy wanted regular, only how he 'guessed' that the guy wanted regular.

For example, suppose his guess was wrong, and the guy intended to tip 25 cents, but absentmindedly forgot to state his order. Or suppose the guy had misread the sign and thought that diet was \$1.00 and regular was \$0.75, or that 'cola' was \$1.00 and didn't realize that diet was cheaper; maybe he had forgotten his eyeglasses at the grocery store earlier that day. Or maybe the guy was paying with Canadian money, and he knew the exchange rate was \$1.00 CAD = \$0.75 USD, but the stand owner didn't recognize that the coins were Canadian and not American. Or maybe the guy was self-deluded and thought he could 'push' the idea that he wanted diet into the stand owner's mind via telepathy, despite being handed change to cover a regular cola, hence he didn't say his intended order; he was testing his abilities or trying to show off to his girlfriend who awkwardly overlooked his silly delusion because he was actually quite a nice guy deep down, and also fabulously rich. Or maybe ...

You get the idea. There are any number of strange circumstances which *could* have been the case. It's only by guessing that the *most likely* explanation was the *actual* explanation that the stand owner happened to be right. But if instead of saying "Thanks," the guy had responded with, "Oh, actually I wanted a diet cola. You see, it just so happens that ... blah blah blah..." then the stand owner would have realized that he didn't actually *know* the guy wanted regular, he had only *guessed* that.

Long story short: To get from 'I'm guessing that' to 'I know that', you need some extra information that shifts the probabilities from just 'probably' to 'almost certainly' (or, in some rare cases, 'absolutely certainly').
[/pedantry]
An Easy Mind Problem: 9/11/2015 13:38:00

Gen. NumbNuts
Level 48
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It's probably because of the fact that the customer had change instead of a dollar.
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