When any city or village has not adopted this Article 5 and desires to vote to adopt Article 4 as provided in Sections 4-2-2 through 4-2-9 and also desires to vote on adoption of this Article 5 upon compliance with the provisions thereof, both propositions may be submitted at the same election, and may be printed on the same ballot, but each proposition shall be stated separately. The proposition receiving the larger majority shall be adopted.