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Caravel Forum : Other Boards : Forum Games : A quizz (Logic)
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Syntax
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icon A quizz (0)  
Ok, here's one you may have heard.
If not then please don't

Click here to view the secret text


;)

--

My maths teacher who used to smoke a cigar in class, and drink whisky told us it.
It goes something like this (and yes, there is only one answer).

Two guys down the pub.

One asks... "How many kids you got?".
The other answers "3".

"Ok, so how old are they?"
"Well... multiply their ages, and you get 72"

"Hmmmm.... That doesn't answer my question".
"Ok, well, if you add them up you get your oldest kids age".

"Yeah, but that still doesn't answer the question. How old are they ?"
"Well my eldest plays the piano".

"Oh right. Got it. Fancy another pint ?"
"Sure..."

09-08-2005 at 10:41 PM
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agaricus5
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icon Re: A quizz (0)  
Syntax wrote:
Ok, here's one you may have heard.
I haven't, so I'm guessing that this is a logic/maths puzzle, right?

It goes something like this (and yes, there is only one answer).
Only one answer? If that's so, then I guess you've got some in-built assumptions to the puzzle that you haven't stated.

"Ok, so how old are they?"
"Well... multiply their ages, and you get 72"
There are several theoretical possibilities for this, I think, so I guess the next lines contain clues to narrow down the choices for solutions.

"Hmmmm.... That doesn't answer my question".
"Ok, well, if you add them up you get your oldest kids age".
Does this mean that the total of the ages of person 2's children is equal to the age of the eldest child of person 1? If so, that doesn't make any sense, as person 1 might have only one child, and he could be of any age.

"Yeah, but that still doesn't answer the question. How old are they ?"
"Well my eldest plays the piano".
Is this a part of the puzzle? The definition of "playing the piano" is quite indistinct with regards to age, so a real prodigy could have been started at a very young age, for example. I guess there is some sort of lowest cut-off point, for the age that a person to be perceived as being able to play, but I don't think it's very high.

"Oh right. Got it. Fancy another pint ?"
"Sure..."
Okay... So I may be on the wrong track, in which I guess I'm not interpreting the puzzle properly, but here's my guess.

Click here to view the secret text


____________________________
Resident Medic/Mycologist

[Last edited by agaricus5 at 09-09-2005 12:02 AM]
09-08-2005 at 11:59 PM
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stigant
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icon Re: A quizz (0)  
You don't need these two assumptions:
Click here to view the secret text


You are on the right track, though you are missing one key observation about how to use one of the pieces of information.

Here's a leading question:
Click here to view the secret text


____________________________
Progress Quest Progress

[Last edited by stigant at 09-09-2005 02:11 AM]
09-09-2005 at 02:10 AM
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Mattcrampy
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icon Re: A quizz (0)  
Aah, I think I've got it.

Click here to view the secret text


____________________________
What do you call an elephant at the North Pole?
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09-09-2005 at 04:29 AM
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Chris
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icon Re: A quizz (0)  
Mattcrampy wrote:
Click here to view the secret text

But surely
Click here to view the secret text
no?

But if we suppose that
Click here to view the secret text
(I'm glad I'm not a woman!) then that would give us a unique solution.

Chris.
09-09-2005 at 07:46 AM
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Mattcrampy
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icon Re: A quizz (0)  
No, what you're missing is:

Click here to view the secret text


Then again, the puzzle is too ambiguous.

____________________________
What do you call an elephant at the North Pole?
Click here to view the secret text

09-09-2005 at 12:41 PM
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Bombadil
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icon Re: A quizz (0)  
I knew another version of this problem.

I post it in secret because the solution might be the same. Too lazy now to look at yours... Sorry.

Click here to view the secret text

09-11-2005 at 11:02 PM
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zex20913
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icon Re: A quizz (0)  
Nay Bombadil, this is slightly different as you don't know the sum.

One thing that is a clue may be overlooked, but the answer is deducible from the given information.

I've seen this type before, so I'm not posting the solution. It is a touch tricky though.

____________________________
Click here to view the secret text

09-12-2005 at 04:45 AM
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pladams9
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icon Re: A quizz (0)  
But couldn't their ages be:

Click here to view the secret text


Because:

Click here to view the secret text

Click here to view the secret text


Click here to view the secret text


____________________________
--pladams9

[Last edited by pladams9 at 11-15-2005 11:30 PM]
11-15-2005 at 11:29 PM
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TripleM
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icon Re: A quizz (0)  
Click here to view the secret text

11-15-2005 at 11:39 PM
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pladams9
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icon Re: A quizz (+1)  
Oh.

____________________________
--pladams9
11-16-2005 at 03:05 AM
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