Karen asked this question:
How many boys from a Patrol does there need to be to qualify as doing “anything” as a Patrol? I was told 3 or more.
It is normally up to the Senior Patrol Leader and patrol leader with the Scoutmaster to interpret requirements and pass that information along to other leaders and in turn the rest of the troop. So first your Scouts should discuss this with the SPL and patrol leader.
If you are talking about an activity which only involves one patrol, you would still have to meet the Rule of Four (at least two Scouts and at least two adults) so there would have to be at least two Scouts. We have some small patrols in our troop, so they will sometimes pair up to do patrol activities which will ensure that they have four or five participating.