23 posts

## A New Riddle

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• Comment removed at user's request.

• There is nothing new about that riddle

The hotel has \$25 + the mailman has \$2 = \$27 that the friends payed.

• Original:
"3 men go into a hotel.
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?"

• It seems this is just trying to confuse people by incorrectly adding the \$2 to the total amount paid, even though that makes no sense whatsoever.

Why someone would fall for that is the true riddle.

• @SharePoint Guy:I thought I was a little too old and overqualified to have problems with addition and substraction, but the riddle is pretty good

• Each man actually paid \$8.33 as \$25 / 3 = \$8.33

Add a \$1 refund = \$9.33

\$9.33 * 3 = \$28

\$28 + \$2 = \$30

Just in case anyone was struggling

Although I preferred my original answer of the hooker's tip...

• \$25/3 is not \$8.33. Also \$9.33 * 3 is not \$28.

Quit abusing floating point numbers!

• @SharePoint Guy: How can it be \$3 for each person? Wouldn't it be \$1 for each person?

3 X \$1 + \$2 = \$5

• The fault in the riddle's proposed calculation becomes much more obvious if you do it with a larger refund. Let's say they get a \$10 refund instead, and the mailmain/bell boy/whatever keeps \$1. Now they each paid \$7*3=\$21, plus the \$1 kept by the mailman is \$22. Are we supposed to assume that \$8 has now gone missing? No, of course not, because the calculation is meaningless and wrong. You have to subtract instead of add: they each paid \$7*3=\$21, minus the \$1 kept by the mailman equals the \$20 that the hotel/restaurant has. Same with the original: \$9*3=27, minus the \$2 equals \$25.

The only reason anyone can think there's something deeper going on here is because the difference is only \$1. If the difference were bigger (like in the situation I just gave) I think people would be much quicker to realize the calculation is bogus and that nothing "disappeared".

• @ManipUni:Yeah but I'm in the UK ?

• @Sven Groot:I originally thought it was to do with the speed of neutrinos or something, then I came to the thought that it might have something to do with Steve Jobs being gone.  But after I while I figured it out.

• @Sven Groot: This riddle is dependent on the reader's falling for the bad math that's set up by the question:

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?

It's as silly as this riddle:

How do you pronounce the capital of the State of Kentucky? Loo-ee-vil or Loo-IS-vil?

Of course, the answer to that is "Frankfort" (pronounced "frank-furt").

If the question didn't try to set up the math for you, you'd think of the \$2 as the tip and automatically add it to the bill (\$25). So you end up with the total being \$27 and no math confusion at all.

• @spivonious: RIP

• Did you consider that the missing \$1 might be quantum locked?  (That makes the whole thing a lot easier to understand)