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Consumer & Producer Surplus · Question 25 of 70

Question 25

MediumOriginal question

The marginal revenue is MR=50−3xMR = 50 - 3x rupees. At what price do 10 units sell?

Options for question 25

Show the answer and explanation
CorrectNot quiteAnswer B

Correct answer: B

Explanation

  1. R(x)=50x−1.5x2R(x) = 50x - 1.5x^{2}, so the price is p=50−1.5xp = 50 - 1.5x.

  2. At x=10x = 10: 50−15=3550 - 15 = 35 rupees.

Worth noting

₹20 is the marginal revenue at 10 units, not the price.

Concept
Demand from marginal revenue
Typical time
90 s
Your time
—
The rule this testsRevenue and demand from marginal revenue
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Ten questions from Consumer & Producer Surplus, at your own pace.

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