1. divide 6 and 6, both sides will not equal5 t; i7 k# b0 ?0 v: h7 O
2. take any side of the 6, divide then 3 and 3, again both sides will not equal' g+ s' _7 k& ]; a3 d2 q1 z7 Q, F
3. take any 2 and weigh them p$ ?- ^( K' F
if they equal, the one left is the ball.