原帖由 我系大P 於 2006-11-25 10:42 AM 發表。
0 u3 Z; D+ w. i6 s# j太······容易了,第一次做就用左1分钟左右
7 {0 I6 ~& e$ J9 B7 Dtvb now,tvbnow,bttvb* j5 q- m: i6 q) Z3 x& Q
第一次称,两边6个,甘样肯定有一边会重D。跟住重D果6个分开两份每份3个称第二次。又系肯定有一边重D。剩低3个。抽其中两个称,如果重量相等,则没有被选中嘅球系最重的。如果 ... ; J( \# }9 e3 [5 {) L
tvb now,tvbnow,bttvb% a* l" D" P* O, [2 g/ H
0 F. l% k# }* Z5 g {/ j1 N2 BWell, I think you have to spend 30 minutes (or more) to read the question more carefully.tvb now,tvbnow,bttvb0 W% q y. {0 E y3 X
tvb now,tvbnow,bttvb( R% T7 S0 T6 q( O
The key point you miss is "重量異常" not just heaver.tvb now,tvbnow,bttvb5 t* p" c5 A6 @( Z
This means you don't know the ball is lighter or heaver. |