who can't figure out??????it's just basic math, primary school kid should already know it [-Xtvb now,tvbnow,bttvb2 M' B' E9 j; v6 R4 P5 x. j: T6 c4 o
9 V: m' \! {( @2 d3 q; `8 F6 W: r1st: 6 vs 6, find out which side is heavier
2 H( ^9 F* y) F m2 c3 P2nd: from the heavy side, 3 vs 3, find out which side is heavier
+ \6 k! u( b5 c. {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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