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Consumer & Producer Surplus · Question 10 of 70

Question 10

MediumOriginal question

The marginal cost is MC=15+2xMC = 15 + 2x rupees and the fixed cost is ₹300. What does it cost to make 20 units?

Options for question 10

Show the answer and explanation
CorrectNot quiteAnswer C

Correct answer: C

Explanation

  1. C(x)=15x+x2+300C(x) = 15x + x^{2} + 300.

  2. C(20)=300+400+300=1,000C(20) = 300 + 400 + 300 = 1{,}000 rupees.

Worth noting

₹700 leaves out the fixed cost; ₹55 is the marginal cost at 20.

Concept
The cost of an output from marginal cost
Typical time
90 s
Your time
—
The rule this testsTotal cost from marginal cost
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Ten questions from Consumer & Producer Surplus, at your own pace.

Practise this chapter →

Ten questions from Consumer & Producer Surplus, at your own pace.

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