Number Ruby

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  4. Extend the Fixnum class with some helper methods to make manipulating dates easier
class Fixnum
  def seconds
    self
  end
  def minutes
    self * 60
  end
  def hours
    self * 60 * 60
  end
  def days
    self * 60 * 60 * 24
  end
end
puts Time.now
puts Time.now + 10.minutes
puts Time.now + 16.hours
puts Time.now - 7.days