Answer Happy

You are using a wrench to loosen a rusty nut. Which of the
arrangements shown is most effective in loosening the nut?
4 > 2 > 1 > 3
2 > 4 > 3 > 1
2 > 1 = 4 > 3
1 = 4 > 3 > 2
None of the above
1 wrench wrench nut nut 3 wrench wrench nut rod nut rod 4 2