who can't figure out??????it's just basic math, primary school kid should already know it [-X
' o" W: Y1 @4 p! X, ]
2 e5 P9 M" @( {% I1st: 6 vs 6, find out which side is heavier
) T: O5 _" W G( N公仔箱論壇2nd: from the heavy side, 3 vs 3, find out which side is heavier
7 U4 ^: Y' t; {" m公仔箱論壇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 |
發表於 2007-2-25 09:20 PM
| 
發表於 2007-2-27 09:08 PM
|