65.012.1
23
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1. , 譭 . PA = 10; PB = 18; PC = 4 I= 142. , ?
MUA/PA | MUB/PB | MUC/PC |
4,5 | 4,4 | |
3,8 | ||
3,2 | 3,6 | 2,5 |
2,5 | 3,1 | |
2,5 |
. . , 4 . , 5 . 3 . , .
2. MUM = 40 5 QM, : MUX = 20 3 QX. : PM = 5; PX = 1; I= 20. ?
1. , I = PAQA + PBQB, MUA/PA = MUB/PB. :
3. ; 21 . = 4, .
1. .
2. . = 7?
1) : M = PAQA + PBQB MUA/PA = MUB/PB :
2) 42/7 = 6.
4. U = (QA 4)(QB 6), M = 64, PA = 1, PB = 1,5.
1) ?
2) , .
3) , B PB = 2.
4) .
.
1)
2) U 0 = 25,5×17=433,5, :
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3)
, , , , :
; .
, :
D QA = 33,45 29,5 = 3,95; D Q = 20,72 23 = 2,28,
:
D QA = 28 33,45 = 5,45; D Q = 18 20,72 = 2,72.
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4) (1×33,5 + 2×20,7) = 74,9 (. ), (74,9 64) = 10,9.
, . U 1 = 24×12 = 288,
(1×24,78 + 1,5×19,86) = 54,57; (64 54,57) = 9,43.
:
(10,9 9,43) = 1,47
5. 6 . 8 . . : . 3 . ?
, , :
U0 = U1 → (6 -2)0,5 (8- 4)0,25 = (Q1 - 2)0,5 (5 - 4)0,25 → Q1 = 10
, 3 . 4 . .
6. = 5; = 4 : QA = 2 QB + 5. 333 375 . ?
( ).
( ) .
D QA = 6; D QB = 3.
. 3. -
7. 200 . . = 5 QA = QB + 4. 5 4 . ?
( ).
( ) .
D QA = D QB = 2.
8. 40 . = 10; eD = 2. .
QD = a bP:
b = 2×40/10 = 8; a = 40×3 = 120. ,
QD = 120 8 P. : 20(15 10) = 100.
9. :
( ), 6 . .
, , :
, 10 ≤ P < 16 III; 6 ≤ P < 10 II III 0 < P < 6 :
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, 6 .
= 8; eD = 1,5×8/6 = 2.
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1. , . , ; 4 . PA = 11. .
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2. , . I = 31, , 4 . , 2 . 3 . . .
3. MU = 100 4 Q, MU = 60 Q. I = 300 , 53 88 . .
4. MU = 100 4 Q, MU = 60 Q.
: P = 8; P = 2; I= 300. ?
5. (TU) (MU) , , Q :
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Q | TU | MU | TU | MU | TU | MU |
1. .
2. , , , 1 . . 0,5 . .
6. 8 . 4 Y. , = 2, Y 0,5?
7. , I = 150 P = 20; P = 2. ?
8. I = 100 15 . 8 . . .
9.
I = 1500 449 . 602 . . : ) ; )
10. 6 . 8 . . .
1. . 2 . ?
2. MRSAB .
11. . , F?
12. PA = 18; PB = 2.
1. : ) 42 27 . .; ) I = 42 PB = 1,6.
2. : ) ? ) ? ) ?
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13. 1- 14 . 20 . , 2- 12 . 25 . . , PB 0 = PB 1 = 1. : ) PA 1/ PA 0; ) 1/ 0; ) () .
14. : . Y PX = 5; PY = 10.
15. 0,15, + 0,5. 5%, 10%. ?
16. X : QDX = 100 2PX + 0,8PY. X 10 . ., Y 5 . . X .
17. X : QDX = 50 4PX + 0,8PY. X 5 . ., Y 10 . . X .
18. (0,8), (+0,5). , 2%, - 5%. ?
19. .
. . . | , . | , . | , . |
1. .
2. . .
3. .
20. , I = 100 P = 2; P = 6.
1. ?
2. : ) 88? ) P = 3?
3. , .
4. .
21. , I = 120 P = 3; P = 1.
1. ?
2. : ) 90? ) P = 0,5?
3. P = 0,5 ( )?
4. P = 0,5.
5. , .
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6. .
22. = 1; = 2 : . 120 240 . ?
23. = 2; = 1 : . 100 150 . ?
24. 100 . . = 2 . 1 8 . ?
25. 120 . . = 4
QA = 0,5 QB. 1 0,5 . ?
26. 150 . = 2; eD = 1,5. .
27. 50 . = 4; eD = 0,5. .
28. :
1. = 16?
2. 30 ?
3. = 10?
4. Q = 12,5?
29. :
1.
= 12?
2. 36 ?
3. = 4?
4. Q = 12?