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# Magic Trick

#### incrediBILL

3:41 am on Jan 28, 2013 (gmt 0)

joined:Jan 25, 2005
posts:14664

Think of a number between 0 and 20

Multiply by 2.

Subtract 1.

It's dark isn't it?

#### lucy24

4:34 am on Jan 28, 2013 (gmt 0)

#### Senior Member from US

joined:Apr 9, 2011
posts:14177

I couldn't read the last question. My eyes were closed.

I was waiting for the part where you convert the whole thing to binary (32 x 2 - 1 = 111111) and then instantly say what number the person was originally thinking of.

#### rocker

3:10 pm on Jan 28, 2013 (gmt 0)

#### Preferred Member

joined:June 14, 2006
posts:393

Stand up looking due East

Pivot 180 degrees.

#### LifeinAsia

5:23 pm on Jan 28, 2013 (gmt 0)

#### Moderator from US

joined:Dec 10, 2005
posts:5702

It's dark isn't it?

Nope- still light out.

#### thecoalman

10:10 am on Jan 29, 2013 (gmt 0)

#### Senior Member

joined:Mar 4, 2004
posts:885

3 guys walk into a hotel and pay \$30 for a room.

The clerk realizes he overcharged them \$5 so he gives it to the bellhop to take to their room.

Realizing they can't easily split 5 between the three of them they each take one dollar and give the bellhop a \$2 tip.

Since they each got \$1 back they each paid \$9 for room, 3*9 is \$27.

\$27 plus the \$2 tip for the bellhop is \$29.

Where did the dollar go?

----------------

This was a favorite of my Father's when we were kids.

#### astupidname

10:40 am on Jan 29, 2013 (gmt 0)

#### Preferred Member

joined:Aug 18, 2008
posts:408

they each paid \$9 for room

That, sir, is a LIE! They paid \$25 (\$8.3333333333333333 each) for the room and tipped the bellhop \$2 (\$0.6666666666666666 each, for a total expenditure per person of \$8.9999999999999999 each), thus spending a total of \$27

--------------------

I'd like to know when I can collect all those 1/10th's of a penny the gas stations owe me, must be at least several hundred thousand of them by now...

#### thecoalman

8:17 pm on Jan 29, 2013 (gmt 0)

#### Senior Member

joined:Mar 4, 2004
posts:885

That, sir, is a LIE!

I prefer to call it creative accounting. :P

#### lucy24

12:32 am on Jan 30, 2013 (gmt 0)

#### Senior Member from US

joined:Apr 9, 2011
posts:14177

That, sir, is a LIE!
<snip>

There's a much shorter answer. But knowing that there would be a spoiler-- because there's always a haha spoilsport-- I took the precaution of not scrolling beyond the first post until I arrived at my own "D'oh!" We will not talk about how long that took.

#### buckworks

3:10 am on Jan 30, 2013 (gmt 0)

#### Moderator

joined:Dec 9, 2001
posts:5730

Where did the dollar go?

It didn't "go" anywhere.

There's no reason why the sum of those parts needs to be anywhere near the original amount.

#### lucy24

3:38 am on Jan 30, 2013 (gmt 0)

#### Senior Member from US

joined:Apr 9, 2011
posts:14177

Awright, time to join the spoilsports. The answer is: It isn't 27 plus 2 = some number that doesn't add up and causes grownups to take time away from the things they ought to be doing. It's 27 minus 2 = number that fits neatly into everything else.

#### astupidname

6:49 am on Jan 30, 2013 (gmt 0)

#### Preferred Member

joined:Aug 18, 2008
posts:408

I'd like to know where you can get a room for \$25

But then maybe not....

? 3 guys in a room? which ones shared a bed?

This was a favorite of my Father's when we were kids.

perhaps it needs to be adjusted for inflation, change story as of now to oh say \$100

#### LifeinAsia

4:47 pm on Jan 30, 2013 (gmt 0)

#### Moderator from US

joined:Dec 10, 2005
posts:5702

I'd like to know where you can get a room for \$25
Thailand.

Used to be able to get some rooms in Korea that cheaply as well, but probably closer to \$40 nowadays.

#### lucy24

12:15 am on Jan 31, 2013 (gmt 0)

#### Senior Member from US

joined:Apr 9, 2011
posts:14177

:: vague mental association with "Bangkok Doesn't Count" ::

#### LifeinAsia

1:14 am on Jan 31, 2013 (gmt 0)

#### Moderator from US

joined:Dec 10, 2005
posts:5702

Bangkok was/is more expensive that that. I stayed for less than \$25/night out by the Bridge on the River Kwai.

#### RhinoFish

9:08 pm on Jan 31, 2013 (gmt 0)

#### Senior Member

joined:June 20, 2006
posts:1957

And a coupon site drove them to buy the hotel room in the first place...

#### lucy24

11:26 pm on Jan 31, 2013 (gmt 0)

#### Senior Member from US

joined:Apr 9, 2011
posts:14177

Bangkok was/is more expensive that that.

Yah, but you get more bang for your buck
:: snrk ::
To say nothing of that inimitable Thai Street Aroma that I could never identify until years later when my then-two-year-old peed on my blowdryer*.

* Which was not on at the time. That would have been** a different story.
** Actually it wouldn't, because it's got its own GFCI. Just wanted to allay any worries ;)