Between two book-ends in your study are displayed your five favourite puzzle boo

Question

Between two book-ends in your study are displayed your five favourite puzzle books. If you decide to arrange the five books in every possible combination and moved just one book every minute, how long would it take you ?

Options:

A . 1 hour

B . 2 hours

C . 3 hours

D . 4 hours

Answer: Option B

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