On a bookshelf in Quiz Master Shop Towers we have three books in a trilogy. The books are on the shelf in the normal way; that is, volume one on the left, volume two in the middle and volume three on the right.
All three books are two centimetres or 20 millimetres thick, including the covers, and the covers are three millimetres thick.
The puzzle this week is to calculate the distance between the first page in volume one and the last page in volume three.
As usual you can post your suggested answers as a comment on this website, reply to the post on Facebook, or retweet or reply on Twitter @quizmastershop.
Answer at 9.00 on Monday
26mm
26 mm
54 mm