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Full Version: Puzzle 5 (for the math buff)
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An oldie but a goody.

What formula was used in determining the sequence of the following numbers.


8, 5, 4, 9, 1, 7, 6, 10, 3, 2, 0
Are you sure it's a formula? The change in x isn't constant... They also aren't triangular numbers or geometric numbers.
I got it!

Smiley_emoticons_wink
(04-21-2011, 05:48 PM)Cracker Wrote: [ -> ]Are you sure it's a formula? The change in x isn't constant... They also aren't triangular numbers or geometric numbers.

As dick would say "don't think TOO much!"

(04-21-2011, 06:02 PM)Ordinary Peephole Wrote: [ -> ]I googled it!

Smiley_emoticons_wink

Smiley_emoticons_wink
(04-21-2011, 06:06 PM)Ordinary Peephole Wrote: [ -> ]
(04-21-2011, 05:48 PM)Cracker Wrote: [ -> ]Are you sure it's a formula? The change in x isn't constant... They also aren't triangular numbers or geometric numbers.

As dick would say "don't think TOO much!"

Eh, I googled it when the formulas I tried didn't work.

I'm always of afraid of being too good at patterns. That's where math and Autism intersect. haha
Nah I've seen this one before.

It's a classic.

Like the riddle of the Sphinx, well maybe not that classic.
I only like math puzzles you can work and get a discrete answer. Ambiguous answers drive me NUTS.
(04-21-2011, 05:48 PM)Cracker Wrote: [ -> ]Are you sure it's a formula? The change in x isn't constant... They also aren't triangular numbers or geometric numbers.

little hint

Formula: any fixed or conventional method for doing something

Think outside the box.

meh fuck...Godamned Google....grumble, grumble, grumble
(04-21-2011, 06:17 PM)Cracker Wrote: [ -> ]I only like math puzzles you can work and get a discrete answer. Ambiguous answers drive me NUTS.

There is only ONE solution that makes any sense.

It is completely unambiguous.

Like kid said think "outside" the box.

I think she got it OP..said she googled it.
Sorry, effen HATE number problems that don't make sense to me.

I solemnly swear NOT to fuck up the next one...
I remember..back in 9th grade, I gave that problem to my math teacher...drove him fucking nuts, and he finally surrendered.
(04-21-2011, 06:54 PM)thekid65 Wrote: [ -> ]I remember..back in 9th grade, I gave that problem to my math teacher...drove him fucking nuts, and he finally surrendered.

Because it's random. He made a function table, and there is no pattern of increase/decrease; it is different forwards and backwards (the inverse isn't true). Then he probably checked out the usual sequences and growth patterns (Fibonacci, Pascal's Triangle, primes, triangular, geometric, etc.). Then he said, "fuck it" because he didn't feel like messing with anything Calculus related.