1) Which book would you take to find out about zebras?  123456789----------------------------

2) Which book would you use to find out about volcanoes?  123456789----------------------------

3) Which book would you use to find out about elephants?  123456789----------------------------

4) Which book would you use to find out about horses?  123456789----------------------------

5) Which book would you use to find out about cooking?  123456789----------------------------

6) What is the number of the missing book?  123456789----------------------------

7) What would be the letters on the missing book?  p - rm - nl - mj - ln - mm - o----------------------------

8) If you wanted to find out about lions, tigers, whales and leopards, how many books would you need? 123456789----------------------------

9) What would the book numbers be?4,6,75,8,94,5,64,7,85,6,7----------------------------