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**Tasselfoot** · 05-16-2008, 05:40 PM

Oh. Also... the answer to mental 9:

Sum of 3 outer numbers divided by the sum of the digits in the sum.

5+6+7 = 18. 1+8 = 9. 18/9 = 2. Which is why 3 of the ones are divisible by 9. But, the upper left doesn't work dividing by 9.... so... the upper left total is 42. 4+2 = 6. 42/6 = 7. 7 is the answer.

Rubix is the only person who solved that.... I also posted it on another forum about 2 days after devonin posted it here, and not one person has solved it there either.

05-16-2008, 05:40 PM	#465
Tasselfoot Retired BOSS Join Date: Jul 2003 Location: Widget Heaven Age: 40 Posts: 25,184	Re: Devonin's Critical Thinking Tourney Two - COMPLETED Oh. Also... the answer to mental 9: Sum of 3 outer numbers divided by the sum of the digits in the sum. 5+6+7 = 18. 1+8 = 9. 18/9 = 2. Which is why 3 of the ones are divisible by 9. But, the upper left doesn't work dividing by 9.... so... the upper left total is 42. 4+2 = 6. 42/6 = 7. 7 is the answer. Rubix is the only person who solved that.... I also posted it on another forum about 2 days after devonin posted it here, and not one person has solved it there either. __________________ RIP