1. divide 6 and 6, both sides will not equal 1 O( ^; i) I- m, ^2. take any side of the 6, divide then 3 and 3, again both sides will not equal - i+ @5 T& ~9 j0 N3. take any 2 and weigh them 8 u; B1 G$ V+ }% a) iif they equal, the one left is the ball.