who can't figure out??????it's just basic math, primary school kid should already know it [-X
) G9 p; |6 T5 x( h- m% b
, ?$ c4 V, h# \) |4 {1st: 6 vs 6, find out which side is heavier
. |. L7 |5 [) x) T9 M2nd: from the heavy side, 3 vs 3, find out which side is heavier
5 {7 Q9 {# f4 W b0 l3rd: 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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