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Unitary Method

ICSE · Class 7 · Mathematics

Complete topic list for Unitary Method in ICSE Class 7 Mathematics. Key concepts, sub-topics, and what to focus on for board exams.

42 questions20 flashcards5 concepts

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4 Topics · ICSE Class 7 Mathematics

Topics in Unitary Method

1

1. Core Idea of the Unitary Method

  • The unitary method first finds the value of a unit quantity.
  • After finding the value of 1 unit, the required value is calculated from it.
  • This method is helpful when the given quantity and the required quantity are connected by a fixed relationship.
2

2. Direct Variation

  • In direct variation, both quantities increase together or decrease together.
  • Examples include money and articles, cloth and cost, and earnings and days.
  • For direct variation, when one quantity becomes more, the other also becomes more.
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3. Inverse Variation

  • In inverse variation, one quantity increases when the other decreases.
  • Examples include speed and time, men and days for a fixed work, and horses and days for fixed food.
  • For inverse variation, more of one quantity gives less of the other.
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4. Worked Examples from Direct Variation

  • A man earning ₹400 in 10 days earns ₹40 per day.
  • The man will earn ₹1,120 in 28 days.
  • 0.75 m cloth costing ₹45 means 1 m costs ₹60.

Key Concepts

Central concept: The unitary method is a way to find the value of one unit first and then use it to find the required value.

Meaning of unitary methodDirect variationInverse variationArrow methodTime and workPipes and cisternsUnit conversion in problems

Frequently Asked Questions

What are the important topics in Unitary Method for ICSE Class 7 Mathematics?
Unitary Method covers several key topics that are frequently asked in ICSE Class 7 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Unitary Method — ICSE Class 7 Mathematics?
Understand the core concepts first, then work through the 42 practice questions available for this chapter. Revise formulas and 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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All 25 chapters — ICSE Class 7 Mathematics Syllabus

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