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Formula Sheet

Elasticity of Demand — Formula Sheet

ICSE · Class 10 · Economics

9 formulas from Elasticity of Demand (ICSE Class 10 Economics) on one page, grouped by topic. Includes Perfectly inelastic demand.

41 questions38 flashcards9 formulas & key relations5 concepts

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A diagram illustrating different types of price elasticity of demand: perfectly inelastic, inelastic, unitary elastic, elastic, and perfectly elastic, using various demand curve shapes.
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9 Entries · 5 Sections

Formulas and Key Relations

Meaning and Core Idea

Ed = Percentage change in quantity demanded / Percentage change in price

Ed = (ΔQ / Q) / (ΔP / P)

Types of Elasticity of Demand

Ei = Percentage change in demand / Percentage change in income

Ei = (ΔQ / Q) / (ΔY / Y)

Ec = Percentage change in demand of commodity X / Percentage change in price of commodity Y

Ec = (ΔQx / Qx) / (ΔPy / Py)

Ed = ΔQ / ΔP × P / Q.

Perfectly inelastic demand

Ed = 0.

Key relations

The simplified form is Ed = ΔQ/ΔP × P/Q.

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Frequently Asked Questions

What are the important topics in Elasticity of Demand for ICSE Class 10 Economics?
Key topics in Elasticity of Demand include Meaning and Core Idea, Percentage Method and Formula Use, Degrees or Kinds of Price Elasticity of Demand, Demand Curves and Total Expenditure. Study these first, then practise questions on each for the ICSE Class 10 board exam.
How many formulas are in Elasticity of Demand?
This sheet lists 9 formulas from Elasticity of Demand, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Elasticity of Demand for the ICSE Class 10 board exam?
Learn the core ideas first, then work through the 41 practice questions on Elasticity of Demand. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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