person.rb

class Person
  attr_reader :balance

  def balance(balance)
    @balance = balance
  end

  def balance_test?
    p "Your balance measurement is: #{@balance}"
    if @balance > 500
      "You could be a gymnast"
    elsif @balance > 100 && @balance < 500
      "You have normal balance"
    else
      "You either have terrible balance or drank too much"
    end
  end
end

gymnast = Person.new
gymnast.balance(600)
p gymnast.balance_test?

drunkard = Person.new
drunkard.balance(50)
p drunkard.balance_test?