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Author Topic: Brain Ache!  (Read 2844 times)

Offline Wizzo

Brain Ache!
« on: November 26, 2007, 10:19:22 AM »

Three people check into a hotel. They pay £30 to the manager and go to their room. The manager suddenly remembers that the room rate is £25 and gives £5 to the bellboy to return to the people.

On the way to the room the bellboy reasons that £5 would be difficult to share among three people so he pockets £2 and gives £1 to each person.

Now each person paid £10 and got back £1. So they paid £9 each, totalling £27. The bellboy has £2, totalling £29. Where is the missing £1?



"No Matter how little money and how few possessions, you own, having a dog makes you rich."

GPWizard F1 Forum https://www.gpwizard.co.uk
:wizard:
Wizzo

Offline romephius

Re: Brain Ache!
« Reply #1 on: November 26, 2007, 11:47:54 AM »
Nothing..... Because it doesn't exist....  :o

Greatest mathematical magic trick ever that one....

I can explain my answer.... but... quite simply I am too tired..... it's 10pm here now

Rom

Offline Alianora La Canta

Re: Brain Ache!
« Reply #2 on: November 26, 2007, 02:16:12 PM »
£25 with the manager (room rate)
£3 with the people (each given £1 by the bell boy)
£2 with the bellboy (pocketed £2)

The manager has the other £1.
Percussus resurgio
@lacanta (Twitter)
http://alianoralacanta.tumblr.com (Blog/Tumblr)

Offline Wizzo

Re: Brain Ache!
« Reply #3 on: November 28, 2007, 07:04:20 PM »

You have to be careful what we are adding together.

Originally, they paid £30, they each received back £1, thus they now have only paid £27.

Of this £27, £25 went to the manager for the room and £2 went to the bellboy.

3 x £1 = £3 (Customers) + £25 (Manager) + £2 (Bellboy) = £30

There was no missing £1! - strange eh?
"No Matter how little money and how few possessions, you own, having a dog makes you rich."

GPWizard F1 Forum https://www.gpwizard.co.uk
:wizard:
Wizzo

 


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