try and solve this!

Freshgeardude

Diamond Member
Jul 31, 2006
4,506
0
76
9 3 15 7 12 ? 13 5 17 11

what is the number there?


hint: each of the numbers has something in common with eachother.

also, explain how you got it

good luck
 

makken

Golden Member
Aug 28, 2004
1,476
0
76
8.

the ends add to 20.

9+11 = 20
3+17 = 20
15 + 5 = 20
7 + 13 = 20
12 + ? = 20
 

hypn0tik

Diamond Member
Jul 5, 2005
5,866
2
0
7.999999999999999999999999999999999999999999999999999..............................................
 

Epic Fail

Diamond Member
May 10, 2005
6,252
2
0
Originally posted by: hypn0tik
7.999999999999999999999999999999999999999999999999999..............................................

you are off by a little.