who can't figure out??????it's just basic math, primary school kid should already know it [-XTVBNOW 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。! ^ w6 V5 ]& b
c7 Y: U' j3 N: _% V, o1st: 6 vs 6, find out which side is heavier
1 v5 y& Q5 O; H1 F, c公仔箱論壇2nd: from the heavy side, 3 vs 3, find out which side is heavier% T$ U1 v6 n* q( C g
3rd: choose 2 out of 3 from the heavier side, if they weight the same, the 1 left is the one, if not, u can see it right away the heavier ball is on the 天秤 |
發表於 2007-2-27 03:20 PM
| 