who can't figure out??????it's just basic math, primary school kid should already know it [-X# f' d! z" t% U) @
tvb now,tvbnow,bttvb! N, [2 z- ]% m+ l
1st: 6 vs 6, find out which side is heavier
& R/ Y2 @7 V9 r4 `( A2nd: from the heavy side, 3 vs 3, find out which side is heavier
2 C! p- V1 U' Y4 p. d% C3rd: 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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