i find one solution that is similarwww3.tvboxnow.com8 @5 ]# A' O8 I! e8 W/ P
but i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left..../ X5 G! H; e7 D. z+ V* f* g6 s
maybe there is a better one, let me see sin
actually this question always have someone asked, the calculation is very complicated, should give a no. of each ball, and first weight it in 6-6, and .... forgot...