1. divide 6 and 6, both sides will not equalwww2.tvboxnow.com6 z9 |0 Y6 l4 E) I( Z% K
2. take any side of the 6, divide then 3 and 3, again both sides will not equal ! M: Q# T' ^( n( O/ U3. take any 2 and weigh them2 N% [# ]6 D" @& y; L
if they equal, the one left is the ball.