3-4
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: (50% , 50% , 330 /100 ) -150 , 3 3,5, 12 , 1 .
, .
3 153 . . + 3 . . , 1. 12 : 10 = 29 . ( ) 11 . 5 = 15 . 22 = 65 . ( ) 11 . 5 (15 .)
10 = 29 . 11 . , 15 . = 153 ., 2 .
, . 3,5 1 7 .
3,5 2 21 , .
: , . 3 3 10 : , - 7 . , 1 . /. . 20 . . + 3 . . , 18 . /. .
![4475167_s23089498 (228x500, 25Kb)](//img0.liveinternet.ru/images/attach/c/4/83/699/83699724_4475167_s23089498.jpg)
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