each side put 6 ping pong.
+ N2 [' ]5 B9 q" y9 Vtvb now,tvbnow,bttvbThen select the side of 6 ping pong which is heavier and measure again with 3 + 3公仔箱論壇# \# x6 J4 s" s7 U* M& W
Then select the side of 3 ping pong which is heavier.# I8 R4 Y9 `- r! \. K( J
After tat use these 3 ping pong , put 1 on each side. If equal then the 3rd ping pong is the 1.( j$ h; d$ i# |8 t4 i0 G
If one side is heavier means the heavier side ping pong is the one |