Three members of the Board of Zoning Appeals shall constitute a quorum. The Board shall act by resolution; and the concurring vote of three members of the Board shall be necessary to reverse any order or determination of the Building Commissioner. or to decide in favor of an applicant in any matter on which the Board has original jurisdiction under this Zoning Ordinance. or to grant any variance from the requirements stipulated in this Zoning Ordinance. (Ord. 1-1969. Passed 3-24-69.)