First in 4 group each 3 balls.(A, B, C, D )
/ U. r6 H( M! D( d2 d8 G, Vanswert1)A and B 去稱, 如果重量相等. than A and C去稱,如果重量相等. D 份3個.D1 and D2去稱, 如果重量相等. D3重量異常.
8 V0 o( V7 W0 n4 e5.39.217.77answert2)A and B去稱, 如果重量不相等. than A and C去稱,如果重量相等.B 份3個.B1 and B2去稱,如果重量相等. B3重量異常.* ]5 ? B" [# M( I6 j1 g; O# L/ w) \ W
answert 3)A and B去稱, 如果重量不相等. than A and C去稱, 如果重量不相等. A 份3個. A1 and A2去稱,如果重量不相等.之前 you know the different by A , B and C 重或輕.
% w9 o J9 B0 A3 @% r6 N7 K" Q& ?; ~The answert in 1 min.:onion14: |
發表於 2007-12-1 03:18 PM
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發表於 2007-12-2 01:42 PM
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