definetly a wrong one for you
Level
pending
which one will replace the question mark:
3,15,27,
9,45,81,
6,?,56
31
30
18
23
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
Second number is the average of the first and third number.