1. divide 6 and 6, both sides will not equaltvb now,tvbnow,bttvb9 C0 r7 C% k8 r' t6 n( Q( T
2. take any side of the 6, divide then 3 and 3, again both sides will not equaltvb now,tvbnow,bttvb W/ ]) `/ I/ l, p$ T* z
3. take any 2 and weigh them5.39.217.77:8898( \0 M# w, f' T" P- A8 q
if they equal, the one left is the ball.