i find one solution that is similar ; ?8 M" k3 ]. twww3.tvboxnow.combut i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left.... . S# u0 U5 N/ o& qmaybe 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...