who can't figure out??????it's just basic math, primary school kid should already know it [-X
. j6 p; a9 R4 D2 j6 ?* t5 I/ C* }. Y m1 V
1st: 6 vs 6, find out which side is heavier3 P9 X4 e: o% [+ }' l
2nd: from the heavy side, 3 vs 3, find out which side is heavier% D6 A1 U% M. D) C* d
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 |