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The Missing Dollar  
User currently offlineBartiniMan From Australia, joined Jul 2001, 315 posts, RR: 0
Posted (10 years 10 months 3 weeks 1 day 14 hours ago) and read 961 times:

After reading the thread "I dont get this", it reminded me of a good puzzle I read some time ago. See if you can explain where the missing dollar has gone.


3 MEN GO INTO A MOTEL. THE MAN BEHIND THE DESK SAID THE ROOM IS $30, SO EACH MAN PAID $10 AND WENT TO THE ROOM. A WHILE LATER THE MAN BEHIND THE DESK REALIZED THE ROOM WAS ONLY $25, SO HE SENT THE BELLBOY TO THE 3 GUYS' ROOM WITH $5. ON THE WAY THE BELLBOY COULDN'T FIGURE OUT HOW TO SPLIT $5 EVENLY BETWEEN 3 MEN, SO HE GAVE EACH MAN A $1 AND KEPT THE OTHER $2 FOR HIMSELF. THIS MEANT THAT THE 3 MEN EACH PAID $9 FOR THE ROOM, WHICH IS A TOTAL OF $27, ADD THE $2 THAT THE BELLBOY KEPT = $29. WHERE IS THE OTHER DOLLAR?


BartiniMan



7 replies: All unread, jump to last
 
User currently offline707cmf From France, joined Mar 2002, 4885 posts, RR: 29
Reply 1, posted (10 years 10 months 3 weeks 1 day 13 hours ago) and read 953 times:

WHERE IS THE OTHER DOLLAR?

I'd say under your Caps Lock key...

No, more seriously.

The total is 27$, but the 2$ the bellboy kept for himself are not taken from the 30$. They are a supplement from the 25$ the 3 (unwise) men should have paid. 25+2 = 27.

To go from 27$ to 30$ you add 3$. Thos were not kept by the bell boy, but just given back to the guests.

And please, just don't shout like that, you sound like my 7th grade math teacher...

707


User currently offlineUTA_flyinghigh From Tunisia, joined Oct 2001, 6495 posts, RR: 50
Reply 2, posted (10 years 10 months 3 weeks 1 day 12 hours ago) and read 947 times:

Aaargh ! 707cmf showing his superior math skills (and big head in the process) again !  Big thumbs up  Big thumbs up
Will



Fly to live, live to fly - Air France/KLM Flying Blue Platinum, BMI Diamond Club Gold, Emirates Skywards
User currently offline707cmf From France, joined Mar 2002, 4885 posts, RR: 29
Reply 3, posted (10 years 10 months 3 weeks 1 day 12 hours ago) and read 942 times:

and big head in the process

Well, Big Giant Head, actually.

But you know, Will, it does not take math skills that superior to add flights durations in one's log book  Wink/being sarcastic

Anyway, vieille put, I'm sure you'll feel more at home in that thread : http://www.airliners.net/discussions/non_aviation/read.main/447331/

707

[Edited 2003-11-05 10:57:40]

User currently offlineBartiniMan From Australia, joined Jul 2001, 315 posts, RR: 0
Reply 4, posted (10 years 10 months 3 weeks 1 day 8 hours ago) and read 917 times:

I was ready to paste the answer from the site that I copied this riddle from, cause I was sure people would have a hard time figuring it out. Yet 707 is too smart and quick for all of us.  Smile

BartiniMan

P.S. the reason for the caps lock is cause i copied and pasted, and thats the way it came out and i didnt want to rewrite it in lower case letters.


User currently offlineQb001 From Canada, joined Apr 2000, 2053 posts, RR: 4
Reply 5, posted (10 years 10 months 3 weeks 1 day 8 hours ago) and read 917 times:

707cmf is right. Here is the arithmetic proof.

RP = Room Price (original)
GS = Guy's Share (original)
E = Price of "error"

So first:
RP = 3 x GS

Then, clerk realizes error and fixes it:
RP - E = (3 x GS) - E

Bellboy gives each Guys a reimbursement (R) of 1$ and keeps balance (B) of 2$. Therefore:
RP - E = (3 x GS) - (3 x R) - 2

We simplify:
RP - E = 3(GS - R) - 2

We solve:
RP = 30
GS = 10
E = 5
R = 1
B = 2

30 - 5 = 3(10 - 1) - 2
25 = 25.



Never let the facts get in the way of a good theory.
User currently offlinePrebennorholm From Denmark, joined Mar 2000, 6452 posts, RR: 54
Reply 6, posted (10 years 10 months 3 weeks 1 day ago) and read 872 times:

Bartiniman, your math is brilliant, it's exactly as the minister of finances in my country.

Come up here, you will have a great career in the Ministry of Finances.  Big thumbs up

All you need to learn is to put about nine or ten zeroes behind your figures.



Always keep your number of landings equal to your number of take-offs, Preben Norholm
User currently offlineLehpron From United States of America, joined Jul 2001, 7028 posts, RR: 21
Reply 7, posted (10 years 10 months 3 weeks 22 hours ago) and read 847 times:

i like cheese, does anyone else like cheese?


The meaning of life is curiosity; we were put on this planet to explore opportunities.
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