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1. 0.5 33% . , .
2. 2~2.5 .
3. 200 () . .
4. .
5. -24 .
, - ! (500*33+200*8.5)/(500+200) = 26%
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4.
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1. 33 %
2.
3. . , , !
3. , - , ..
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https://www.e1.ru/talk/forum/read.php?f=148&i=149053&t=24154&page=0
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