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Formula Sheet

Direct and Inverse Variations — Formula Sheet

ICSE · Class 8 · Mathematics

5 formulas from Direct and Inverse Variations (ICSE Class 8 Mathematics) on one page, grouped by topic. Part of the ICSE Class 8 Mathematics syllabus.

61 questions26 flashcards5 formulas & key relations5 concepts

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5 Entries · 3 Sections

Formulas and Key Relations

Direct Variation

If x and y are in direct variation, then x/y is constant.

x1/y1 = x2/y2 = x3/y3 = ... = a constant

Inverse Variation

If x and y are in inverse variation, then xy is constant.

x1y1 = x2y2 = x3y3 = ... = a constant

Key relations

If x1 / y1 = x2 / y2 = x3 / y3 = ... , the quantities are in direct variation.

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Frequently Asked Questions

What are the important topics in Direct and Inverse Variations for ICSE Class 8 Mathematics?
Key topics in Direct and Inverse Variations include Variation and Its Types, Direct Variation: Tables, Missing Values, and Examples, Inverse Variation: Tables and Missing Values, Arrow Method. Study these first, then practise questions on each for Class 8 exams.
How many formulas are in Direct and Inverse Variations?
This sheet lists 5 formulas from Direct and Inverse Variations, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Direct and Inverse Variations for Class 8 exams?
Learn the core ideas first, then work through the 61 practice questions on Direct and Inverse Variations. 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.

More resources for Direct and Inverse Variations

All ICSE Class 8 Mathematics Formula Sheet

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