i find one solution that is similar , I; e8 [+ `* p' B6 l2 j7 Z( obut i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left....www2.tvboxnow.com& d5 I5 e) D# V Q
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...