DSC1520 NEWEST UPDATED 2026-2027 ACTUAL FINAL EXAM
WITH 100 COMPLETE DETAILED QUESTIONS AND 100%
CORRECT VERIFIED ANSWERS ALREADY A+ GRADED BRAND
NEW!!!
The demand function for a product is given by
P
=
120
−
4
Q
P=120−4Q. What is the quantity demanded when the price is R60?
A. 10 units
B. 12 units
C. 15 units
D. 18 units
Correct Answer: C
Rationale: Substitute
P
=
60
P=60 into
60
=
120
−
,4
Q
60=120−4Q →
4
Q
=
60
4Q=60 →
Q
=
15
Q=15 units.
If the supply function is
P
=
20
+
2
Q
P=20+2Q and the demand function is
P
=
80
−
3
Q
P=80−3Q, the equilibrium quantity is:
A. 10
,B. 12
C. 14
D. 16
Correct Answer: B
Rationale: Set
20
+
2
Q
=
80
−
3
Q
20+2Q=80−3Q →
5
Q
=
60
5Q=60 →
Q
=
12
Q=12. Equilibrium price is
P
=
20
+
2
, (
12
)
=
44
P=20+2(12)=44.
The fixed cost of producing widgets is R500, and the variable cost is R15 per unit. The total cost function
is:
A.
T
C
=
15
Q
TC=15Q
B.
T
C
=
500
Q
+
15
TC=500Q+15
C.
T
C
=
WITH 100 COMPLETE DETAILED QUESTIONS AND 100%
CORRECT VERIFIED ANSWERS ALREADY A+ GRADED BRAND
NEW!!!
The demand function for a product is given by
P
=
120
−
4
Q
P=120−4Q. What is the quantity demanded when the price is R60?
A. 10 units
B. 12 units
C. 15 units
D. 18 units
Correct Answer: C
Rationale: Substitute
P
=
60
P=60 into
60
=
120
−
,4
Q
60=120−4Q →
4
Q
=
60
4Q=60 →
Q
=
15
Q=15 units.
If the supply function is
P
=
20
+
2
Q
P=20+2Q and the demand function is
P
=
80
−
3
Q
P=80−3Q, the equilibrium quantity is:
A. 10
,B. 12
C. 14
D. 16
Correct Answer: B
Rationale: Set
20
+
2
Q
=
80
−
3
Q
20+2Q=80−3Q →
5
Q
=
60
5Q=60 →
Q
=
12
Q=12. Equilibrium price is
P
=
20
+
2
, (
12
)
=
44
P=20+2(12)=44.
The fixed cost of producing widgets is R500, and the variable cost is R15 per unit. The total cost function
is:
A.
T
C
=
15
Q
TC=15Q
B.
T
C
=
500
Q
+
15
TC=500Q+15
C.
T
C
=
