1. divide 6 and 6, both sides will not equaltvb now,tvbnow,bttvb0 a7 s9 d- S* [
2. take any side of the 6, divide then 3 and 3, again both sides will not equal & s% m! v& w) o. f: W3. take any 2 and weigh them4 l, d+ ~7 W* R9 @. Q
if they equal, the one left is the ball.