take out 10 balls and 5 in each side
; r$ x, \* X# J& zTVBNOW 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。if both side balance mean the other 2 balls one of them must be the heavy one then just take them to weight will find out which one is heavier.公仔箱論壇0 J* O M% K, R) e. y; G& a
3 J2 K% k2 p# w' l" P+ \# mif the heavy ball is inside the 10 balls, take out 4 balls from the heavier side which had 5 balls to weight 2 balls in each side.- ?1 Q5 Z G; Y0 \( Q
if both side balance, which mean the one left is heavy one if not, just take the heavier side to weight will find out which one is the heaviest one.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。$ ^/ ~' @; J1 V! H% W3 |* v
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used less then 1 min to find out the answer.... |