JCERT · Class 7 · Chapter 6 · Ratio and Proportion. Topic notes aligned to the official chapter; these are not solutions to every textbook exercise.
JCERT · Class 7 · Chapter 6 · Ratio and Proportion. Topic notes aligned to the official chapter; these are not solutions to every textbook exercise.
JCERT · Regular schools (Non-SOE) · Class 7 · Chapter 6 — Ratio and Proportion
Official syllabus pages 103–110. Official syllabus · Prescribed Hindi book (22 chapters) · Separate supplementary reference.
These topic notes and teaching examples are not a complete answer key to every textbook question. English notes use this same JCERT chapter order; a matching English textbook PDF has not been verified.
A ratio compares quantities. Convert quantities of the same kind into matching units, then simplify both terms by a common nonzero factor. Two equal ratios form a proportion.
Convert the hour to minutes before comparing.
60:30 = 2:1
Convert the hour to minutes before comparing.
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