First in 4 group each 3 balls.(A, B, C, D )www.tvboxnow.com" t: }7 `+ |/ y! [0 Y5 L0 k
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.
0 W H, ~ J& {6 _$ Oanswert2)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.
8 E& F; X: g. H, h9 }7 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.
9 W, q8 s6 m6 A' T/ r2 zThe answert in 1 min.:onion14: |