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#1 2006-01-13 01:38:07

goggles1980
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Puzzle

Which number doesn't belong in this set?

73, 83, 86, 93

Obvious (ie. 86 because it's even) ? Or am I missing a deeper meaning of these numbers?

Another one, this one is for sure difficult.

What is depicted by the following:

    8
u u u u   
u u u

 

#2 2006-01-13 03:16:31

mathsyperson
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Re: Puzzle

That's the problem with puzzles like that. You give a perfectly sensible answer, and then the designer of the puzzle says that the actual answer is something different and complex and feels really proud of themselves, even though they're actually just being childish.

e.g. What comes next in this sequence? A, A, A, A, A...?

Any sane person would answer A, but nooooo... the idiot who calls themselves a puzzle-maker says 'no yore rong cos its acshully the first leter of the continants lol'

Anyway, your answer is fine. It's probably not the intended one, but it's certainly the simplest.

The second puzzle is harder. I can't think of anything right now, but I'll keep pondering for a while.


Why did the vector cross the road?
It wanted to be normal.
 

#3 2006-01-13 08:35:54

MathsIsFun
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Re: Puzzle

73 and 83 are primes, 86 and 93 are composite, so it isn't that.

And the other puzzle? Something to do with the eight being over 7 "u"s. They might look like "c" sideways? Seven Seas?

BTW: I like your continents one!


"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman
 

#4 2006-01-13 12:20:17

Ricky
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Re: Puzzle

Heres one:  what comes next in this sequence:

9, 10, 11, 12, 13, 14...



Once you've looked that, try to guess the pattern...


"In the real world, this would be a problem.  But in mathematics, we can just define a place where this problem doesn't exist.  So we'll go ahead and do that now..."
 

#5 2006-01-13 20:12:21

justlookingforthemoment
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Re: Puzzle

goggles1980 wrote:

8
u u u u   
u u u

Maybe something to do with 'you underrate'?

 

#6 2006-01-15 16:36:20

ganesh
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Re: Puzzle

Sensible thinking. But why 7 'u's?


Character is who you are when no one is looking.
 

#7 2006-01-18 06:30:16

Zach
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Re: Puzzle

In return to Rod's C theory; 8 Continents over Seven Seas.


Boy let me tell you what:
I bet you didn't know it, but I'm a fiddle player too.
And if you'd care to take a dare, I'll make a bet with you.
 

#8 2006-01-18 09:18:18

mathsyperson
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Re: Puzzle

But where do you get 'continents' from?

This is just an idea, but as they're c's on their side, it might be something do to with seaside.


Why did the vector cross the road?
It wanted to be normal.
 

#9 2012-12-09 11:32:25

mathaholic
Star Member

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Re: Puzzle

I bet it's 86. Because the other 3 numbers end in 3.


246 pages on Prime Numbers Wiki (+1)
 

#10 2012-12-15 20:22:18

mathaholic
Star Member

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Re: Puzzle

Or it is 83 'cause it is prime.


246 pages on Prime Numbers Wiki (+1)
 

#11 2012-12-15 21:50:59

anonimnystefy
Real Member

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Re: Puzzle

Well, 73 is also prime...


The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

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