Ruby - Beginner - Dividing using 2D Array -

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I do not know how to call on the second part of the 2D array. 

  array = [[['dog', 5], ['cat', 10]] num = 10 points / array [0,1]    
 
 
  array = [[dog ', 5], [' cat ', 10]] num = 10 puts num / array [0] [1] puts # 10/5 = 2 points / array [1] [1] # 10/10 = 1

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