jen198053

who can't figure out??????it's just basic math, primary school kid should already know it [-X
. f2 a+ z6 _0 I# W. s& o8 {
, T6 V" W2 S+ B- ?1st: 6 vs 6, find out which side is heavier" ]& s8 u4 X! U7 `
2nd: from the heavy side, 3 vs 3,  find out which side is heavier
1 Z4 j! D/ a8 Y  }6 V3rd: 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

jen198053

there got more simple way to do it, just read my way, the one i answered before