Friday Brain Teaser
BenB - 27/6/08 at 05:41 PM
Okay, he we go!!!! Prepare to blow some neural fuses!!!
3 blokes rent a car for £30.
They each put down a £10 note.
When they take back the car the man in the hire shop says "oh I made a mistake, it's only £25, so here's £5 back"
They decide to split the change so swap the £5 for five one pound coins, they each take a pound each, and give the man a £2 tip for being honest and
telling them.
Each man handed down £10 and got £1 back so that's £9 each.
Three * nine pounds = £27
Add in the two pound tip = £29
where's the pound gone? 
ps HEALTH WARNING- if you see smoke coming out of your ears stop thinking so hard and advise people close by to retreat to a safe distance.
ppsAnd if you think that's clever you should see the way my accountant makes all my income disappear in outgoings. Not..... Sadly........
JoelP - 27/6/08 at 05:43 PM
its an old one that, and rather simple im afraid
but to sumarise, they gave a total of £27, of which 25 went into the til and £2 into the mans pocket 29 and 30 never came into it!
[Edited on 27/6/08 by JoelP]
BenB - 27/6/08 at 05:46 PM
3 * £10 = £30
The answer's all about the brackets
Liam - 27/6/08 at 05:46 PM
Why should the total amount the men pay, plus the amount they have given as a tip add up to 30? It shouldnt.
Liam
BenB - 27/6/08 at 05:49 PM
Yes it should cos otherwise moneys gone missing somewhere!!!
dave1888 - 27/6/08 at 05:50 PM
Why didn't the hire shop guy just keep the £5 and save all the hastle.
BenB - 27/6/08 at 05:50 PM
Hell, I wanna know where you can hire a car for £30
BenB - 27/6/08 at 05:52 PM
The £30 is very much part of the answer.
But the £29 isn't........
And it should add up to £30
blakep82 - 27/6/08 at 06:00 PM
£29 isn't part of the answer at all, somewhere (i'm not feeling well wnough to properly explain why, my eyes are too sore) the £3 of them
and the £2 for him is getting swapped over. thats where the £1 goes.
what does come into the answer, is £25 + £3 + £2 = £30. end of 
rf900rush - 27/6/08 at 06:03 PM
Stealth Tax
mookaloid - 27/6/08 at 06:11 PM
quote:
Originally posted by rf900rush
Stealth Tax
LMAO
Liam - 27/6/08 at 06:18 PM
quote:
Originally posted by BenB
Yes it should cos otherwise moneys gone missing somewhere!!!
No - read what I said. The total amount the men end up paying (27) plus what the guy recieved as a tip (2) shouldn't add up to 30. i.e. that 29
shouldn't be 30 at all, so the 'where has the 1 pound gone' is a meaningless question.
That's the power of this 'riddle' - the fact that the question has been asked makes you look for a clever answer when there isn't
one - the question was a trick. For example say the guy said 'oh it's only £20, have a tenner back.' The men take £3 each and give a
£1 tip. So the men have each spent £7 - total £21, plus the £1 tip = 22. Where's the £8 pounds gone? The answer is what £8? - as I said the
sum of what the men pay plus the tip shouldnt be 30 - there's no missing money - it's a trick question.
LIam
[Edited on 27/6/08 by Liam]
BenB - 27/6/08 at 06:23 PM
Well it should and it shouldn't
£30 = £10+10+10 = £25+ £2 tip + £1 + £1 + £1
£9 + £9 + £9 = £25 + £2 = £27
The trick comes in here
£27 = £25 + £2
so £27 = £25 - 2 true
Not
£27 + 2 = £30 false
speedyxjs - 27/6/08 at 07:14 PM
Is this one of those teasers like counting your fingers down 10 - 9 - 8 - 7 - 6 on one hand and then adding the 5 from your other hand and equaling
11?
speedyxjs - 27/6/08 at 07:19 PM
The £27 = £25 car hire + £2 tip
The other £3 is the money back 
blakep82 - 27/6/08 at 07:32 PM
quote:
Originally posted by speedyxjs
The £27 = £25 car hire + £2 tip
The other £3 is the money back
yes! thats the £2 and £3 being swapped round i was thinking of...
JoelP - 27/6/08 at 07:32 PM
thats pretty much what me and liam were saying!
quote:
Originally posted by BenB
Well it should and it shouldn't
£30 = £10+10+10 = £25+ £2 tip + £1 + £1 + £1
£9 + £9 + £9 = £25 + £2 = £27
The trick comes in here
£27 = £25 + £2
so £27 = £25 - 2 true
Not
£27 + 2 = £30 false