first divide it into 3 groups... 4 for each group...
8 K# ~- i- L) h, p, Kden use 2 groups to test... if the weight is same... den throw away these 2 groups.. if not... use another 1 group to test with tat 2 groups... throw away the same weight groups...1 Z( v9 i0 @1 v
den... left 4 balls...
8 O- U" b; ]" b8 a2 O; u! d, @when u use tat 3 groups to test... u oredi know it is heavier or not...www.tvboxnow.com1 a a, z6 _; b8 u
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...www.tvboxnow.com+ W9 |! h3 m; h
take the heavier or lighter 1... throw away tat 2 normal ball...
" q2 W5 E& w! ~1 Ywww.tvboxnow.comden u juz nit 2 test the last 2 balls...3 n, \. ]# G. [1 T$ j' C) h7 _
same for now... take the heavier or lighter 1... |