Background: Our organization has 30 members. A quorum is 50% plus 1 or 16. The requirement to pass a motion is not defined in our bylaws and is generally thought to conform to the definition of that in Robert's Rules 1:6 - a majority of the votes cast.
At a recent properly called meeting with 17 members present, a vote on a controversial measure was taken, first via viva voce. When the Chairman could not ascertain an outcome he called for a second vote, this time via a show of hands. The outcome was 8 in the affirmative and 7 in the negative. (Two members announced they were abstaining.) The Chairman was getting ready to announce the motion passed but before he did a spirited discussion broke out with the opposing group claiming the motion failed because the abstentions would count as negative votes, thus the final count would be 8 aye, 9 nay. This controversary was eventually settled by application of 4:35. Then the issue turned to it failed because the total vote cast did not reach the quorum value and it was claimed the total votes cast must, at a minimum, equal to number required in a quorum. Not being able to argue for or against this argument the question lingers.
My question is: In order for a motion to pass, is there a requirement for a total votes cast must equal, at a minimum, the number required for a meeting quorum? If there is this requirement, please site the source. [Since there is no obligation to vote, (45:3), it is my feeling had there only been 3 votes cast - (2 aye, 1 nay) the motion would have passed even if all 30 members had been present.]