each side put 6 ping pong.
4 z' d: L+ h1 yThen select the side of 6 ping pong which is heavier and measure again with 3 + 36 x2 Y2 y/ C( D+ f9 T& H4 Q( R! _* ^
Then select the side of 3 ping pong which is heavier.
( T) V3 T' m8 Lwww3.tvboxnow.comAfter tat use these 3 ping pong , put 1 on each side. If equal then the 3rd ping pong is the 1.公仔箱論壇( p7 e0 J; e' C$ H) M. |5 H
If one side is heavier means the heavier side ping pong is the one |