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Posers and Puzzles

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What number should replace the quistion mark?
8 12 17 2 3 ?

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Originally posted by TheChessKing
What number should replace the quistion mark?
8 12 17 2 3 ?
5

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good

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Originally posted by TheChessKing
good
sorry to spoil it .....I didn't think I could get it right.......but no I did not just take a guess.....I did have a reason 😵

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oh i get it, it makes sense if you start with the 2

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yeh

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why is the answer 5?????????????

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Originally posted by schackack
why is the answer 5?????????????
8 12 17 2 3 ?

a) 8-12= 4

b) 12-17=5

c) 2-3= 1

d) 3-?=2

You see the differance between a and b are only 1 apart
so I assumed the same would be said for c and d

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Originally posted by chronicman
8 12 17 2 3 ?

a) 8-12= 4

b) 12-17=5

c) 2-3= 1

d) 3-?=2

You see the differance between a and b are only 1 apart
so I assumed the same would be said for c and d
you skipped over 17-12=15

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Originally posted by uzless
you skipped over 17-12=15
Well that confuses me.

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Originally posted by chronicman
Well that confuses me.
As does your spelling of puzzle.

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Not my spelling😛

1 edit
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30, as I suspect the last two numbers are supposed to be 17 and 23, not 2 and 3.

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psst check the forth post answer was confirmed but I like your spin on it.