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Consumer & Producer Surplus · Question 19 of 70

Question 19

MediumOriginal question

The marginal revenue is MR=100−6xMR = 100 - 6x rupees. What is the total revenue from selling 10 units?

Options for question 19

Show the answer and explanation
CorrectNot quiteAnswer C

Correct answer: C

Explanation

  1. R(10)=∫010(100−6x) dx=[100x−3x2]010R(10) = \int_{0}^{10} (100 - 6x)\,dx = \left[100x - 3x^{2}\right]_{0}^{10}.

  2. =1,000−300=700= 1{,}000 - 300 = 700 rupees.

Worth noting

₹40 is the marginal revenue at x=10x = 10, from the tenth unit alone.

Concept
The revenue from an output, 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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