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Consumer & Producer Surplus · Question 5 of 70

Question 5

MediumOriginal question

The marginal cost is MC=20+4xMC = 20 + 4x rupees and the fixed cost is ₹100. What does it cost to make 10 units?

Options for question 5

Show the answer and explanation
CorrectNot quiteAnswer C

Correct answer: C

Explanation

  1. C(x)=100+20x+2x2C(x) = 100 + 20x + 2x^{2}, integrating MC and adding the fixed cost.

  2. C(10)=100+200+200=500C(10) = 100 + 200 + 200 = 500 rupees.

Worth noting

₹60 is the marginal cost at x=10x = 10, the cost of one more unit.

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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