who can't figure out??????it's just basic math, primary school kid should already know it [-X
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$ P: U K1 F0 I: J5.39.217.77:88981st: 6 vs 6, find out which side is heavier
+ U1 P5 a+ {% t5 g0 V: w" ~5 j! c2nd: from the heavy side, 3 vs 3, find out which side is heavier# k/ z- R& j: j, U
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 |