Round: 31
Jodri the Lenny stands looking at the books on his bookshelf. 'Read... read... read.. read... I've read ALL of these books. Im so bored....'

'... hmmm let's see... how about I pose myself a little puzzle...'.

Jodri looked at his books once more... there was Neopian Knights, Space Meerca, Fantastic Mr. Flotsam, The Big Smelly Gelert, Space Meerca II (The Sequel), One of our Tyrannians is Missing, The Negg of Delights, Mysterious Neopia, and lastly his favourite, The Day the Neopian Bank Exploded.

He started to arrange the books on the shelf, and then thought to himself... 'If I placed each book side by side, I wonder how many different combinations I could arrange these books in...'.

How many combinations are there?





Answer: 362,880 combinations



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