Divide 3 groups first.
' ]. T6 Y3 l" U Q( q8 F! r5 ?( |i.e. 4 x 4 x 4." {3 g/ P; k! b8 _* }* ~5 }( }1 }
Weight any 2 groups [1st]) A5 c% {- r7 j1 p' n
then you will know the heavier ball in which group.
( p1 \; |# p. \6 aWeight any 2 balls in that group [2nd]
* a! W3 r# q) w, T+ z; sthen you will know the heavier ball in which 2 balls.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。% J; k$ A! H& N' L: g3 L
Repeat again in remainders [3rd]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。/ J1 }5 f) I) s
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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