First in 4 group each 3 balls.(A, B, C, D )公仔箱論壇/ B1 v; c% ]& M, A' n7 z5 \, u
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.
" W6 X7 W0 y7 ]5 O, }公仔箱論壇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.
) z/ J6 S6 l6 b1 {8 u1 Eanswert 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.) N) {# R) H F% a" K9 h
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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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