each side put 6 ping pong.
; @, a1 L8 g; O公仔箱論壇Then select the side of 6 ping pong which is heavier and measure again with 3 + 3' U5 V- N' I3 ~# o( G
Then select the side of 3 ping pong which is heavier.% M6 c/ V) L; O& d+ H- j
After tat use these 3 ping pong , put 1 on each side. If equal then the 3rd ping pong is the 1.
6 G' {# P6 |) w- P/ U7 D公仔箱論壇If one side is heavier means the heavier side ping pong is the one |