who can't figure out??????it's just basic math, primary school kid should already know it [-X: _( K& @3 U+ j, C2 R# t! q
& o- t5 U& L3 C* \; W# f: |9 y( E3 z! stvb now,tvbnow,bttvb1st: 6 vs 6, find out which side is heavier
% v+ u& a5 ^$ b1 y6 ]/ ~ m2nd: from the heavy side, 3 vs 3, find out which side is heavier# S9 j4 j( t G2 W
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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