You know Peter, thinking about it like that I would probably only use #'s (3) and (4) as multiples if they were also divided by (5).
In other words, if I am 200 yards away and would really only want to hit a pitch shot from between 40 and 70 yards (but I might use three different clubs from 40-70 yards) I have to factor that in.
In the context of JK's question, a 100 yard 9 iron followed by another 100 yard 9 iron would not seem to qualify as a reasonable attempt to get the ball in the hole as quick as we can.
Take away that caveat and this effort is useless...how many shots would it take me to go around the world the wrong way?
Quite a few once you reach either the Atlanic or Pacific, unless you are the guy Gary Player was talking about who is using steroids