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Ruby Ruby Operators and Control Structures Logical Operators The And (&&) Operator

def check_speed(car_speed) if (car_speed.to_i >= 40) && (car_speed.to_i <= 50)

i dont understand this question

ruby.rb
def check_speed(car_speed)
  # write your code here
  if (car_speed.to_i >= 40)  && (car_speed.to_i <= 50)
    puts "Bonjour monde!"
  else
    puts "Bonjour monde!"
  end
end