Section 41. Quorum and majority

Whenever three or more public officers are
  given any power or authority, or three or more persons are charged  with
  any  public  duty  to  be performed or exercised by them jointly or as a
  board or similar body, a majority of the whole number of such persons or
  officers, gathered together in the presence of each other or through the
  use of videoconferencing, at a meeting duly held at a time fixed by law,
  or by any by-law duly adopted by such board or  body,  or  at  any  duly
  adjourned  meeting  of  such  meeting,  or at any meeting duly held upon
  reasonable notice to all of them, shall constitute a quorum and not less
  than a majority of the whole number may perform and exercise such power,
  authority or duty. For the purpose of this provision  the  words  "whole
  number"  shall  be  construed  to mean the total number which the board,
  commission, body or other group of persons or officers would  have  were
  there no vacancies and were none of the persons or officers disqualified
  from acting.