.
= 250
= 1 ..
= 255
= 60
2.
= 1 . .
= 900
= 2
– 100
3
=475
= 6
, .
20 .
160 .
-
, , .
30-40 . (
, ) .
. , 5 , . , , ,
, 10 .
. , , , 1,5 , . . .
1,5 .
!!!