i find one solution that is similarwww2.tvboxnow.com# V, A# h4 Y# X1 s( Q
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.... ! w8 T; g: Y0 t$ J9 Q' e2 j0 Swww2.tvboxnow.commaybe 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...