I received this on another forum
Possible?
EDIT: Just realised this was just posted :S woops!
..Thanks for the replies, i think i have found my answer!
4 is the answer
25 - 24 = 1
24 - 22 = 2
22 - 19 = 3
19 - 15 = 4
15 - 10 = 5
therefore:
10 - x = 6
therefore:
x = 4
Possible?
EDIT: Just realised this was just posted :S woops!
..Thanks for the replies, i think i have found my answer!