Divide the 12 balls into 4 groups of 3's.
9 q1 j; _6 c+ b$ B# VWeigh group 1 & 21 o+ f2 ]2 [1 r, F
then weigh group 2 & 3; G7 Q0 F- a" l) f5 Z
If the results are Equal & Equal, it means the ball with the different weight is in group 4.
. F8 O! h* f: L6 [' W0 a+ O# pwww3.tvboxnow.comIf the results are Equal & Unequal, it means the ball is in group 3.
/ H3 X: W& ]3 J- KIf the results are Unequal & Equal, it means the ball is in group 1.
/ a' n: R- y( K/ PTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。If the results are Unequal & Unequal, it means the ball is in group 2.tvb now,tvbnow,bttvb5 _0 U* R. n) E, I2 C
2 f+ C, y0 y L/ w/ e5 S0 N6 [& Pwww3.tvboxnow.comOnce you determine the group that contains the ball.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。) ]6 n( U+ }2 {( k6 T2 W, B* f4 Q
Simply weigh two of the balls |
發表於 2007-11-15 03:54 PM
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