40-42.
– .
- 450 (70% , 30% ) 8 - .
- 5.
(. .): . , .
(. /): . . ., 2 . 1 .
(. /): , . ., 3 . 2 .
(. .): . , . . . : .
10 = 10 .
, . 40 . . . /, 2- . 3 1 . = 46 .
35 . , .
. . 8 . .
. . 120 . 20 , 2 . , .