Primary and general city elections shall be conducted jointly with other elections held at the same time insofar as is practicable. Any election officer having responsibility for any other such election shall cooperate with the election officer of the city election, and if a difference arises which cannot be agreed upon, determination of the difference shall be made by the county election officer, unless such difference involves a question the determination of which is provided by law to be made by the secretary of state. If under the provisions of this act one election officer is required to make determination of a matter and under any other statute a different election officer is required to make determination of the same issue, the two (2) election officers shall agree upon determination of such matter, or if they do not agree, either may submit the matter for determination to the secretary of state whose decision on such matter shall be final and conclusive.