who can't figure out??????it's just basic math, primary school kid should already know it [-X1 k% J" p! ~0 d9 P& f \) a
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1st: 6 vs 6, find out which side is heavier
6 B- ~( G- o' L; o7 y' n$ H5.39.217.77:88982nd: from the heavy side, 3 vs 3, find out which side is heavier( G' M. d* ~; a0 s# O0 X/ i
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 2007-2-27 03:20 PM
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