Another Problem encountered in Quant Interview

來源: 於 2009-09-18 14:37:54 [舊帖] [給我悄悄話] 本文已被閱讀：次

12 Marbles, 1 is odd in weight, and all the rest 11 are equal in weight. You have a balance scale. Within three weighings, how do you figure out which one is the odd one and whether it is heavier or lighter than one of the other 11?