Sec. 20. When less than three (3) petitioners, whether for degrees or affiliation or both, are to be balloted on the same meeting, separate ballot must be had on each; when three (3) or more, the petitioners may be balloted on collectively. When the method of group balloting is employed, the Master shall read the names of the petitioners with the essential information about each as supplied by the application, and as furnished by the committee on investigation; after which a ballot shall be taken in the usual manner and on the petitioners collectively, and if no cube appears, each applicant shall be declared elected. If one or more cube appear, the Master may either direct an individual ballot or divide the names of the petitioners into groups, and the lodge shall proceed to ballot in the usual manner on each individual or of each group. The Master shall declare each petitioner in a group elected if no cube appears. The subdivision into groups and this procedure shall continue until an individual ballot is taken. Nothing herein contained shall modify the method of balloting on individual petitioners.