who can't figure out??????it's just basic math, primary school kid should already know it [-X公仔箱論壇5 y3 O: f. s2 {) Z; G- x
& e) I- d' t: p5 S$ ?1st: 6 vs 6, find out which side is heavier
: e& [7 Y4 d; v0 g. w1 z) B7 Y2nd: from the heavy side, 3 vs 3, find out which side is heavier
( G2 J) b" l" W* K3 B! @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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