who can't figure out??????it's just basic math, primary school kid should already know it [-X
; @6 p; |; l' o4 ~$ mtvb now,tvbnow,bttvb
( n2 Y: k9 c* @: B8 f! v% ~0 |1st: 6 vs 6, find out which side is heavier
$ ^* f" }7 x }- T9 [2nd: from the heavy side, 3 vs 3, find out which side is heavier
- Y1 t6 w. u4 ~0 U( l- ^" t3rd: 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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