easy, one minutes i solve the problem3 h3 i7 {7 z" x' z
divide into half, mean 6/ 65.39.217.77, J8 K$ I/ l2 f2 `1 J$ k& i; L ~
take the heavier 6 ping pong
! V+ \+ A$ v- wdivide into 3/3, take the heavier 3
1 R9 c% ~1 I& Z6 F, O" P5.39.217.77take the the other 3 that have the equal weight, switch each to measure, the most important things is labeling the ping pong so that we can recognize |
發表於 2009-2-8 08:11 PM
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