View Full Version : Which does not belong:- 7288, 7178, 3418, 9312, 341, 717, 728
Mandy1970
May 19, 2010, 05:20 PM
Doing a quiz called Cash Trove and this is one that I am stuck on...
Unknown008
May 20, 2010, 07:34 AM
I'd say 9312.
There are 7 numbers right? Well, if you put a line of symmetry on the middle number, you'll notice that:
7288 - 728 (8)
7178 - 717 (8)
3418 - 341 (8)
Only 9312 doesn't have its pair :)