Lecture 15 | Ratio & Proportion (Part 3) | Direct & Inverse Variation + Age Problems | CSAT
Автор: LearnwithAyyam
Загружено: 2026-02-28
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Описание:
Lecture 15 of Quantitative Aptitude for UPSC CSAT — Ratio & Proportion Chapter (Part 3).
In this lecture, we study the important concept of Variation, including direct and inverse proportion. These concepts are widely used in competitive exams and form the foundation for advanced quantitative aptitude topics. Numerical problems and age-based questions are also discussed for better conceptual clarity.
📌 Topics Covered:
✅ Concept of Variation
✅ Direct Proportion (Direct Variation)
✅ Inverse Proportion (Inverse Variation)
✅ Identification of Direct vs Inverse Relationship
✅ Numerical Problems based on Variation
✅ Age-related Problems using Ratio Concepts
✅ Exam-oriented Problem Solving Techniques
🎯 Useful For:
UPSC CSE (CSAT Paper)
State PCS Exams
SSC & other competitive exams
This lecture strengthens logical understanding required for Time & Work, Partnership, and Speed-Time-Distance topics.
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