, 3/19/25, 8:18 PM Assessment 3
UNISA 2025 DSC1520-25-S1 Welcome Message Assessment 3
QUIZ
Assessment 3
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Question 1
The demand function of a firm is
Answer saved
Marked out of Q = 180 − 3P
10.00 𝑄 = 180 − 3𝑃
Flag question where Q 𝑄 and P 𝑃 represent the quantity and price respectively. At what value of P 𝑃 is the marginal revenue
equal to zero?
a. 30
b. 60
c. 1801
d. 00
e. None of the given options is correct.
Clear my choice
Question 2 The demand function of a firm is
Answer saved
Q = 90 − 1, 5P
Marked out of 𝑄 = 90 − 1, 5𝑃
10.00
Flag question where Q 𝑄 and P 𝑃 represent the quantity and price respectively. At what price is revenue a maximum?
a. 30
b. 15
c. 90
d. 270
e. None of the given options is correct.
Clear my choice
Question 3
If the total cost is given by
Answer saved
Marked out of T C = 5Q 3 − 10Q 2 + 50Q + 150
10.00 𝑇𝐶 = 5𝑄3 − 10𝑄2 + 50𝑄 + 150
Flag question
What is the marginal cost when Q = 20? 𝑄 = 20 ?
a. 5 650 5
b. 37 150
c. 1 858
d. 238
e. None of the given options is correct.
Clear my choice
Question 4
If the total revenue is given by
Answer saved
Marked out of T R = 2x 5 − x 2 + 10x + 15.
10.00 𝑇𝑅 = 2𝑥5 − 𝑥2 + 10𝑥 + 15.
Flag question What is the marginal revenue when
x = 3 𝑥 = 3?
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php 1/3
UNISA 2025 DSC1520-25-S1 Welcome Message Assessment 3
QUIZ
Assessment 3
Back
Question 1
The demand function of a firm is
Answer saved
Marked out of Q = 180 − 3P
10.00 𝑄 = 180 − 3𝑃
Flag question where Q 𝑄 and P 𝑃 represent the quantity and price respectively. At what value of P 𝑃 is the marginal revenue
equal to zero?
a. 30
b. 60
c. 1801
d. 00
e. None of the given options is correct.
Clear my choice
Question 2 The demand function of a firm is
Answer saved
Q = 90 − 1, 5P
Marked out of 𝑄 = 90 − 1, 5𝑃
10.00
Flag question where Q 𝑄 and P 𝑃 represent the quantity and price respectively. At what price is revenue a maximum?
a. 30
b. 15
c. 90
d. 270
e. None of the given options is correct.
Clear my choice
Question 3
If the total cost is given by
Answer saved
Marked out of T C = 5Q 3 − 10Q 2 + 50Q + 150
10.00 𝑇𝐶 = 5𝑄3 − 10𝑄2 + 50𝑄 + 150
Flag question
What is the marginal cost when Q = 20? 𝑄 = 20 ?
a. 5 650 5
b. 37 150
c. 1 858
d. 238
e. None of the given options is correct.
Clear my choice
Question 4
If the total revenue is given by
Answer saved
Marked out of T R = 2x 5 − x 2 + 10x + 15.
10.00 𝑇𝑅 = 2𝑥5 − 𝑥2 + 10𝑥 + 15.
Flag question What is the marginal revenue when
x = 3 𝑥 = 3?
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php 1/3
