Off TopicAre you a QOTWer? Do you want to start a thread that isn't a direct answer to the current QOTW? Then this place, gentle poster, is your friend.
(
rob, Sun 1 Apr 2001, 1:00)
« Go Back | Popular
LOOK; it's only a new bloomin threadThree guests check into a hotel room. The clerk says the bill is $30, so each guest pays $10. Later the clerk realizes the bill should only be $25. To rectify this, he gives the bellhop $5 to return to the guests. On the way to the room, the bellhop realizes that he cannot divide the money equally. As the guests didn't know the total of the revised bill, the bellhop decides to just give each guest $1 and keep $2 for himself.
Now that each of the guests has been given $1 back, each has paid $9, bringing the total paid to $27. The bellhop has $2. If the guests originally handed over $30, what happened to the remaining $1?
(
Naked Ape call me Caitlyn, Wed 20 Jun 2012, 15:31,
76 replies,
latest was 13 years ago)
Fucking hell, I can either reply to a bobby thread or a Naked Ape thread. What a glorious choice (, Wed 20 Jun 2012, 15:32, Reply)
Hey battered I'm thinking of writing a bookwill you give me a quote for the cover?
(
Naked Ape call me Caitlyn, Wed 20 Jun 2012, 15:34,
Reply)
I thought you'd like thisassuming you haven't heard the answer before.
Anyway bobby is the just the worst
(
Naked Ape call me Caitlyn, Wed 20 Jun 2012, 15:34,
Reply)
The $27 figure is nothing to do with the equation. Ignore it and it works find. 25 payment, 2 to clerk, 3 refund.
(, Wed 20 Jun 2012, 15:37, Reply)
exactlyI'll dlete this thread then i suppose
(
Naked Ape call me Caitlyn, Wed 20 Jun 2012, 15:38,
Reply)
Solution
The initial payment of $30 is accounted for as the clerk takes $25, the bellhop takes $2, and the guests get a $3 refund. It adds up. After the refund has been applied, we only have to account for a payment of $27. Again, the clerk keeps $25 and the bellhop gets $2. This also adds up.
There is no reason to add the $2 and $27 – the $2 is contained within the $27 already. Thus the addition is meaningless. Instead the $2 should be subtracted from the $27 to get the revised bill of $25.
This becomes clearer when the initial and net payments are written as simple equations. The first equation shows what happened to the initial payment of $30:
$30 (initial payment) = $25 (to clerk) + $2 (to bellhop) + $3 (refund)
The second equation shows the net payment after the refund is applied (subtracted from both sides):
$27 (net payment) = $25 (to clerk) + $2 (to bellhop)
Both equations make sense, with equal totals on either side of the equal sign. The correct way to get the bellhop's $2 and the guests $27 on the same side of the equal sign ("The bellhop has $2, and the guests paid $27, how does that add up?") is to subtract, not add:
$27 (final payment) - $2 (to bellhop) = $25 (to clerk)
This is clearly not a paradox, and involves only the switching of subtraction for addition. Each patron has paid $9 for a total of $27. The storyteller adds the $2 that the bellhop pilfered, but he should have subtracted the $2 to make a total of $25 paid. So 3 X $9 = $27, which accounts for the $25 room and the $2 theft.
(
Light In Chains maker of the ikea sofa, Wed 20 Jun 2012, 15:38,
Reply)
as the original poster copy and pasted the question, my answer used the same methodology prick
(
Light In Chains maker of the ikea sofa, Wed 20 Jun 2012, 15:46,
Reply)
Listen I'll double it to $60 if you fuck off and kill yourself.(
Monty Boyce, My cheese game is strong, Wed 20 Jun 2012, 15:41,
Reply)
A man is driving his car down a country lane.There are trees overhead blocking out the sky, there is no moon and no stars visible. The man is driving without headlights and there are no streetlights.
A rabbit runs out into the road and the driver successfully avoids it. How did he see the rabbit?
(
Kroney, Wed 20 Jun 2012, 15:42,
Reply)
Yep, these logic questions are more about what isn't specified.(
Kroney, Wed 20 Jun 2012, 15:43,
Reply)
More interesting ones are ones like the monty hall problem.*c&p*
Suppose you're on a game show, and you're given the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say No. 1 [but the door is not opened], and the host, who knows what's behind the doors, opens another door, say No. 3, which has a goat. He then says to you, "Do you want to pick door No. 2?" Is it to your advantage to switch your choice?
(, Wed 20 Jun 2012, 15:48, Reply)
Yes.But the argument as to why gives me a headache.
(
The Light in Chains don't touch the Pope's boner, Wed 20 Jun 2012, 15:50,
Reply)
The eal or No deal connumdrumi believe that there is an equation for this.
in this case I would stick, your chances remain 50/50 regardless of which of the two boxes left you choose
(
Naked Ape call me Caitlyn, Wed 20 Jun 2012, 15:51,
Reply)
Yeah, but you originally made that choice on a 30% chance.The argument goes that you are statistically more likely to win if you switch, because you're now dealing with a 50% versus the original 30%
Which is all shit as they have studied this. Most people switch, most people lose.
(
Kroney, Wed 20 Jun 2012, 15:53,
Reply)
He'll never solve the Kobayashi Maru at this rate(
Light In Chains maker of the ikea sofa, Wed 20 Jun 2012, 15:56,
Reply)
the real answer is fuck 'em i'll leave them there(
Light In Chains maker of the ikea sofa, Wed 20 Jun 2012, 15:59,
Reply)
I'd haxx the programme to give my photon torpedoes a 500% increase in yieldThen wade into the Klingon ships with a scarf wrapped around my eyes with a cardboard tube poking out chanting "I AM THE GREATEST I AM THE GREATEST I AM THE GREATEST" as I popped each ship with one torpedo.
Then when the examiner asked me wtf I thought I was doing cheating so blatantly, I'd reply with
"No, YOU'RE beautiful".
(
Kroney, Wed 20 Jun 2012, 17:14,
Reply)
Pick a box, you have 1/3 chance of getting the car 2/3 of not getting it.They then eliminate 1 of the options so, you have a 1/3 chance of your box being right and a 2/3 of the other being right.
(, Wed 20 Jun 2012, 15:59, Reply)
I can't see how the original choice is relevant(
Naked Ape call me Caitlyn, Wed 20 Jun 2012, 16:00,
Reply)
Imagine you pick box 1That means you don't pick box 2 or 3, think about 2&3 as "not box 1"
An incorrect box say 2 is then removed.
So your choice is box 1 or box 3, but it's better to think about it as box 1 or "not box 1" which givs you the 1/3rd chance of it being box 1 and a 2/3rd chance of being "not box 1" which is box 3
(, Wed 20 Jun 2012, 16:05, Reply)
Or think of it as box 1 or 3and your have a 50/50 chance
(
Naked Ape call me Caitlyn, Wed 20 Jun 2012, 16:07,
Reply)
i can se the logic to your solutionhowever it feels like clever maths rather than actual real world fact
(
Naked Ape call me Caitlyn, Wed 20 Jun 2012, 16:11,
Reply)
It's a real world fact that has been proven by repeately opening boxes.(, Wed 20 Jun 2012, 16:12, Reply)
no, statistically it's entirely correctthe problem is that it only works if you assume that the questionmaster didn't know there would be goats behind door 2. Once you accept that if it were a real world problem there would be knowledge on the part of the questionmaster then the odds are meaningless
(
the mighty badger Aphrodite, on a bar stool, by your side, Wed 20 Jun 2012, 16:24,
Reply)
It works because at the point you chose your box you had a 2/3 chance of being wrongwhen they remove one of the wrong boxes you still have the same chance of being wrong but because they have removed an incorrect box you have a 2/3 chance that the other box is right.
You see?
(
Peej, Wed 20 Jun 2012, 16:26,
Reply)
I thought you were supposed to keep your original choice but I can't remember why.
(, Wed 20 Jun 2012, 15:56, Reply)
this tells me it didn't happen in sloughwhere you would have smashed and eaten said bunny
(
rachelswipe with a fork, Wed 20 Jun 2012, 15:50,
Reply)
i have bought some UV glow in the dark pencils for friday's boat raveyou can write all over my face with those if you like
i gather i am seeing you later for a 3some with monty anyway!
(
rachelswipe with a fork, Wed 20 Jun 2012, 15:54,
Reply)
You're gonaa get 3sum written....hang on, you've already out smutted me. Yeah, 'spose. See you later.
(, Wed 20 Jun 2012, 15:59, Reply)
Are you joining us on Saturday?(
Fucking hell Jeff I am not a robot, Wed 20 Jun 2012, 15:59,
Reply)
4pm. Gordon's Wine Bar. Villiers St. (
Fucking hell Jeff I am not a robot, Wed 20 Jun 2012, 16:02,
Reply)
You eating there?I do like cheese.
(
The Light in Chains don't touch the Pope's boner, Wed 20 Jun 2012, 16:42,
Reply)
Because a Stormtrooper bumps his head.(
Monty Boyce, My cheese game is strong, Wed 20 Jun 2012, 15:52,
Reply)
i asked my magic 8 ball if i should buy more weed but it hasn't given me a clear response I reckon it's broken
(
Lisette von Falcon, Wed 20 Jun 2012, 16:14,
Reply)
If you have to ask a question like that YOU are broken(
Reginald Donkeyfuck, Wed 20 Jun 2012, 16:16,
Reply)
This only works if you are a retardHave my riddle,
What is a total cunt in the morning, a total cunt in the afternoon and a total cunt in the evening?
(
Peej, Wed 20 Jun 2012, 16:17,
Reply)
First you take the fox and the grain overImmediately come back with the grain
swap the grain for the chicken and cross
swap the chicken with the fox and come back
then finally cross with the fox and the grain.
(
The Light in Chains don't touch the Pope's boner, Wed 20 Jun 2012, 16:24,
Reply)
No the correct answer isYou dress up in a ridiculous outfit
Immediately chase and shoot the fox
Pluck, roast and eat the chicken
Use the grain to make lovely booze
Drink the booze and forget what you were trying to work out in the first place
(
Peej, Wed 20 Jun 2012, 16:29,
Reply)
my riddle isWhy are you all such a massive bunch of idiotic benders?
(, Wed 20 Jun 2012, 16:22, Reply)
shouldn't you be somewhere insulting someone's bird(
Lisette von Falcon, Wed 20 Jun 2012, 16:24,
Reply)
Good, if I caught someone raping my 5 year old daughter I'd kill them too.(
Peej, Wed 20 Jun 2012, 16:53,
Reply)
I knew he was dishonest.It's the eyes, you see: too close together.
(
Monty Boyce, My cheese game is strong, Wed 20 Jun 2012, 17:08,
Reply)
And all the money in offshore accounts too. Another dead giveaway.Tut tut, 'Sir Gary'.
(
Monty Boyce, My cheese game is strong, Wed 20 Jun 2012, 17:12,
Reply)
« Go Back | Reply To This »