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Unitary Method Example 11 Ex 12.3, 6 Ex 12.3, 1 Ex 12.3, 2 Example 12 Ex 12.3, 5 Ex 12.3, 8 Ex 12.3, 10 Ex 12.3, 11 Example 13 Ex 12.3, 3 Ex 12.3, 4 Example 14 Ex 12.3, 9 Ex 12.3, 7 Example 15 Next category Symmetry →

Unitary Method

Example 11

Ex 12.3, 6

Ex 12.3, 1

Ex 12.3, 2 Important

Example 12 Important

Ex 12.3, 5 Important

Ex 12.3, 8

You are here

Ex 12.3, 10

Ex 12.3, 11 Important

Example 13 Important

Ex 12.3, 3 Important

Ex 12.3, 4

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Ex 12.3, 9 Important

Ex 12.3, 7 Important

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Ex 12.3, 8 - Chapter 12 Class 6 Ratio and Proportion

Last updated at August 14, 2026 by Teachoo

Ex 12.3, 8 - The weight of 72 books is 9 kg. What is weight of 40 book

Next: Ex 12.3, 10 → Remove Ads

Unitary Method pages

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Transcript

Ex 12.3, 8 The weight of 72 books is 9 kg. What is the weight of 40 such books?Weight of 72 books = 9 kg Weight of 1 books = (9/72) kg Weight of 40 books = (9/72) × 40 kg = (1/8) × 40 kg = 40/8 kg = 5 kg ∴ 40 such books will weight 5 kg

Chapter 12 Class 6 Ratio and Proportion
Concept wise

Unitary Method

Example 11

Ex 12.3, 6

Ex 12.3, 1

Ex 12.3, 2 Important

Example 12 Important

Ex 12.3, 5 Important

Ex 12.3, 8

You are here

Ex 12.3, 10

Ex 12.3, 11 Important

Example 13 Important

Ex 12.3, 3 Important

Ex 12.3, 4

Example 14

Ex 12.3, 9 Important

Ex 12.3, 7 Important

Example 15 Important

Symmetry →

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Ex 12.3, 8 - Chapter 12 Class 6 Ratio and Proportion

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