who can't figure out??????it's just basic math, primary school kid should already know it [-X5.39.217.773 l: H0 N: U' h" ~
8 e3 ^) e, z7 F4 t2 D5.39.217.771st: 6 vs 6, find out which side is heavier5.39.217.774 B* V) `; _# z% p- J$ Q% h0 e
2nd: from the heavy side, 3 vs 3, find out which side is heavier$ Q+ \4 {$ \: S1 Y0 J
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 |