puzzel

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

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

5

good

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 😵

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

yeh

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

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

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

Originally posted by uzless
you skipped over 17-12=15

Well that confuses me.

Originally posted by chronicman
Well that confuses me.

As does your spelling of puzzle.

Not my spelling😛

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

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