who can't figure out??????it's just basic math, primary school kid should already know it [-Xtvb now,tvbnow,bttvb7 A! L9 }- W3 @! a" u8 I: [% Q
3 I" a, H2 ~# E, p1st: 6 vs 6, find out which side is heavier5.39.217.77:8898" A$ P5 T5 {, K
2nd: from the heavy side, 3 vs 3, find out which side is heavier; r6 r: o, _9 W# e2 k1 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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