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Consumer & Producer Surplus · Question 50 of 70

What is the consumers' surplus in the earphone market?

Question 50

MediumOriginal question

The demand function for a brand of earphones is p=50−x2p = 50 - x^{2}, where pp is the price in rupees and xx the quantity demanded. The market price is ₹14.

What is the consumers' surplus in the earphone market?

Options for question 50

Show the answer and explanation
CorrectNot quiteAnswer B

Correct answer: B

Explanation

  1. Buyers pay 14×6=8414 \times 6 = 84.

  2. CS=228−84=144CS = 228 - 84 = 144.

Worth noting

₹84 is what buyers pay, not what they save.

Concept
Consumers' surplus for a curved demand
Typical time
120 s
Your time
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The rule this testsConsumer surplus
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Ten questions from Consumer & Producer Surplus, at your own pace.

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

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