Question

There are four volumes of "Humor in Accounting" sitting
on a bookshelf. Each book is exactly eight centimeters thick.
The pages of each book constitute seven centimeters, and the
covers are each half a centimeter thick. A starving beetle starts
eating at page one of volume one and eats straight through to
the last page of volume four. How far does the beetle travel?

Answer 1

8*4-.5 = 31.5 cm?

Answer 2

Incorrect I'm afraid.

Answer 3

So with lotsa help from Dalvy... the answer is 17 cm

Answer 4

Well done :)