each side put 6 ping pong.
& g* H' C( Y# n4 k9 bThen select the side of 6 ping pong which is heavier and measure again with 3 + 3
: P7 A: h$ Y3 }$ Mtvb now,tvbnow,bttvbThen select the side of 3 ping pong which is heavier.
' ?, D, B: p4 N$ AAfter tat use these 3 ping pong , put 1 on each side. If equal then the 3rd ping pong is the 1.
- N6 \3 a+ _# l5 Y1 vIf one side is heavier means the heavier side ping pong is the one |