At such election the electors shall vote first on the question “Shall a charter commission be elected to propose or revise a charter?” and secondly, for the candidates for the office of charter commissioner. If the first question receives a majority of the votes of the qualified voters voting at such election, the 15 candidates for the office of charter commissioner receiving the highest number of votes shall forthwith organize as a charter commission, but if the first question receives less than a majority of the votes of the qualified voters voting at such election, no charter commission shall be deemed to have been elected.