who can't figure out??????it's just basic math, primary school kid should already know it [-X公仔箱論壇& W2 p6 x. K( s: o
. F4 E h) B' E/ y6 k; ^1st: 6 vs 6, find out which side is heavier
+ V+ r) R# t6 D& ~公仔箱論壇2nd: from the heavy side, 3 vs 3, find out which side is heaviertvb now,tvbnow,bttvb! Y4 M( m6 Y3 h4 n9 h2 U3 M- [
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 |