First in 4 group each 3 balls.(A, B, C, D )www2.tvboxnow.com1 ^1 K1 I* ~" i0 k. q9 P" y! F
answert1)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.公仔箱論壇. z' e" m8 X# N! H% |
answert2)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.
% V1 {! F3 `0 P H4 t0 H% ]3 uwww2.tvboxnow.comanswert 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.
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