first divide it into 3 groups... 4 for each group.... i' @8 r2 n3 }" n3 | d
den 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...* e2 d l3 @2 T% D. M' y3 I7 W6 n6 K
den... left 4 balls...8 a3 w3 Y6 S3 l8 [
when u use tat 3 groups to test... u oredi know it is heavier or not...
, c0 l+ y4 H) u8 w' Ctvb now,tvbnow,bttvbso when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...tvb now,tvbnow,bttvb0 I. J/ ^3 t7 g( _! D; N
take the heavier or lighter 1... throw away tat 2 normal ball...
( E& ~$ B( h) M' G' H8 b5.39.217.77:8898den u juz nit 2 test the last 2 balls...
5 C* R9 e' N1 O& f& {3 O/ u" Z8 }TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。same for now... take the heavier or lighter 1... |