First in 4 group each 3 balls.(A, B, C, D )% G0 k) E, I) u. p# z8 n
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.
& o. H% O# t0 s/ O& m1 c2 r4 w1 _0 nwww3.tvboxnow.comanswert2)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.* x- g" t8 I/ W6 E" Y* o
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.
0 T% b; B7 K' n, D0 M公仔箱論壇The answert in 1 min.:onion14: |