Class 9 Social Science Chapter 9: The Price Puzzle: What Drives the Market — practice questions with answers
Free practice for Class 9 Social Science, Chapter 9: The Price Puzzle: What Drives the Market. Try the solved questions below, then take a free test with instant marking and explanations.
59 questions19 easy, 29 medium, 11 hardNCERT · CBSE · State boards
Sample questions with solutions
Q1. What is demand?
- The quantity people are willing and able to buy at a particular price
- Just the wish to own something
- The amount produced
- The total money in a country
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Answer: A. The quantity people are willing and able to buy at a particular price
Why: Desire must be backed by purchasing power. [p.196]
Why: Desire must be backed by purchasing power. [p.196]
Q2. Srivalli buys 1 kg of mangoes at ₹150, 2 kg at ₹100 and 3 kg at ₹50. What does this show?
- The Law of Demand — lower price, higher quantity demanded
- The Law of Supply
- Market equilibrium
- A price ceiling
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Answer: A. The Law of Demand — lower price, higher quantity demanded
Why: Points form a downward-sloping demand curve. [p.196–197]
Why: Points form a downward-sloping demand curve. [p.196–197]
Q3. At ₹100 per kg, Srivalli buys 2 kg, Alex 4 kg and Israt 6 kg of mangoes. What is the market demand at ₹100 (kg)?
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Answer: 12 (± 0)
Why: Market demand is the sum of individual demands. [p.197]
Why: Market demand is the sum of individual demands. [p.197]
Q4. At ₹50 per kg, the three consumers buy 3, 6 and 9 kg. What is the market demand (kg)?
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Answer: 18 (± 0)
Why: 3 + 6 + 9 = 18 kg. [p.197]
Why: 3 + 6 + 9 = 18 kg. [p.197]
Q5. When mango price falls from ₹150 to ₹50, market demand rises from 6 kg to 18 kg. By how many kg does it rise?
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Answer: 12 (± 0)
Why: 18 − 6 = 12 kg. [p.198]
Why: 18 − 6 = 12 kg. [p.198]
Q6. When the price of tea rises, people buy more coffee. Tea and coffee are ______.
- substitute goods
- complementary goods
- public goods
- unrelated goods
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Answer: A. substitute goods
Why: Substitutes can replace each other. [p.198]
Why: Substitutes can replace each other. [p.198]
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How many practice questions are there for Class 9 Social Science Chapter 9: The Price Puzzle: What Drives the Market?
59 questions (19 easy, 29 medium, 11 hard). A few are solved on this page; the free test shows the answer and explanation for every question after you submit.
Is this chapter from the NCERT book?
Yes — it follows the NCERT Class 9 Social Science syllabus, used by CBSE and many state boards.