Divide the 12 balls into 4 groups of 3's.( M4 n7 j5 m. {
Weigh group 1 & 2tvb now,tvbnow,bttvb. {' P6 Z/ y; B
then weigh group 2 & 35.39.217.761 t# f1 U' N8 ^/ _; N& S, x" _8 D
If the results are Equal & Equal, it means the ball with the different weight is in group 4.tvb now,tvbnow,bttvb8 U3 o* Z4 U ~, a: ]; m
If the results are Equal & Unequal, it means the ball is in group 3.
: ^6 w" p. a7 Xtvb now,tvbnow,bttvbIf the results are Unequal & Equal, it means the ball is in group 1.
{2 |6 x5 s' `8 S/ i公仔箱論壇If the results are Unequal & Unequal, it means the ball is in group 2.
" e+ V8 c* c1 A( ?# K3 y5 ]1 O5.39.217.76 u3 M3 X2 m4 a! G
Once you determine the group that contains the ball.* s) C+ y9 P* Y a% f' ]- D
Simply weigh two of the balls |
發表於 2007-11-15 03:54 PM
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