How to Weigh???

[UTKA_79]

You have ten boxes; each contains nine balls. The balls in one box weigh 0.9 kg; the rest weigh 1.0 kg. You have one weighing on an accurate scale to find the box containing the light balls. How do you do it?

[roro]

hello,

ddem het may cai' box bo? vo trong thu`ng nuo'c. Cai box nao` nhe. nhat se~ noi? hon nhung cai' co`n lai. Va` cai do' la contains light balls.

roro :)

[UTKA_79]

Nếu là thùng giấy , bỏ cái nào vào nước thì chìm cái đó xuống như vậy làm sao biết
Try to use an accurate scale to weigh, just 1 weigh to find out which box contain 10 lighter balls

an_nam

[Token Gay Guy]

Take 1 ball from box 1, 2 balls from box 2, ..., 9 balls from box 9. Weight all of them together. If all the balls weight 1 kg, the total should be 45 kg.

So if the lighter balls is in box 1, then the total weight is only 44.9 kg. Box 2 if the weight is 44.8...and if the weight is exactly 45, then the lighter balls are in box 10.

[Tuong-Vi]

good one token gay guy, you have just beat me to it.. :)

TuongVi

[yeudoi]

read the question again. 1 box = 1Kg only 1/10 box = 0.9kg.