⃝ 36
⃝ 18
⃝ 30
⃝ 54
27. : = 100 + 3Q, Q , ; : QD = 180 P, . . 20 . , 20- ____ . .
⃝ 3439
⃝ 400
⃝ 180
⃝ 160
28. -:
() , - , ____ . .
⃝ 20
⃝ 12
⃝ 15
⃝ 8
. 9.
1. , 1996 1997 . (0,375), 13,0 13,2. ,
⃝ ,
⃝
⃝
⃝
2. 4%, 2%,
⃝ 8%
⃝ -2%
⃝ 2%
⃝ 6%
3.
⃝
⃝
⃝
⃝
4. 10 , , ,
⃝ 10
⃝ 40
⃝ 60
⃝ 90