who can't figure out??????it's just basic math, primary school kid should already know it [-X& z6 K2 _( ]0 {0 H
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1st: 6 vs 6, find out which side is heavier9 ]- K& p" ?8 K! g6 O8 z1 b0 Q
2nd: from the heavy side, 3 vs 3, find out which side is heavier9 Q; M5 V* u0 n% W- r
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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