who can't figure out??????it's just basic math, primary school kid should already know it [-X公仔箱論壇' w2 ~3 ~4 O0 H7 K2 ~- g$ H8 ^
6 T7 M2 m& I* G2 y, d" O
1st: 6 vs 6, find out which side is heavier
& E" B# [ b0 y0 g: J2nd: from the heavy side, 3 vs 3, find out which side is heavier5.39.217.77:88989 ~# U( C" \% t0 ?/ n
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
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發表於 2007-2-27 09:08 PM
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