Multiple foul?

[jritchie]

I know a multiple foul is called when 2 players foul a player at the same time. When it's a 2 point shot and the fouls are called and the basket doesn't go in the player gets one shot per foul, for still a 2 shot penalty.
What would be the free throws of a multiple foul that would be called on say a 3 point shot that doesn't go in? and then a multiple foul on a 3 pt shot that does go in? Just wondering! Never seen it happen, for that matter, I've never seen a multiple foul called either!