this is too easy!!; F* x9 i4 X2 }+ c; r' k
( D+ e; j7 h# m f, |+ }. N1. put 6 at each side.. take the one side which is heavier
) Q) Y, C, m: mTVBNOW 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。2. put 3 at each side.. also take the heavier side
$ a* H2 R# x R9 s+ U) H* Q- E7 o' X3. put 1 at each side.. if the weight balance then the one not put inside is the heavy ball.. else the side which is heavier is the heavier ball.. |
發表於 2009-1-7 05:31 AM
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