Hi,

You have to define a "bits_to_bytes" method in the Integer class:

class Integer
  def bits_to_bytes
    # your code
  end
end

puts 8.bits_to_bytes


However, it's probably not a good idea to clutter the Integer class with 
all kinds of special methods. Especially since "it looks better" isn't 
really an argument.

I'd rather put the "bits_to_bytes" into a module like "BitOperations" or 
so. Then you can call it by "BitOperations.bits_to_bytes(8)"

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