RE: Math Brain Teasers 26:: Patterns - What comes next?

Answer is 2.5
The pattern is that.. every time multiples of 6.5 is being subtracted from the last number such as 100-(6.51)=93.5, 93.5- (6.52)=80.5, then 6.5*3 is subtracted and so on... giving the final answer 2.5