ok, i had my last exam today and heres some info from it... not sure if my course leader was trying to be funny or anything but the answer to 3 of the parts in this exam were 6.66
you can call shenannigins (sp) if you like, but i'll take a picture of the exam paper and write all my workings out if you want, i have a feeling i messed up somewhere in the paper but none the less my answers came out as 6.66 !