who can't figure out??????it's just basic math, primary school kid should already know it [-X
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( p2 }3 w5 B9 r9 B( H' N1st: 6 vs 6, find out which side is heavier1 U; L: F! q! Y+ d( K. ~6 |) n5 v$ h
2nd: from the heavy side, 3 vs 3, find out which side is heavier
% _/ F. k3 c0 ?公仔箱論壇3rd: choose 2 out of 3 from the heavier side, if they weight the same, the 1 left is the one, if not, u can see it right away the heavier ball is on the 天秤 |