who can't figure out??????it's just basic math, primary school kid should already know it [-X: X- M+ ~4 z; z
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1st: 6 vs 6, find out which side is heavier7 D) J6 A k8 ~, `4 p. _* q
2nd: from the heavy side, 3 vs 3, find out which side is heavier公仔箱論壇7 |9 C8 o5 I) _$ d2 h9 ~
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 |