NCERT · Class 8 · Mathematics · Direct and Inverse ProportionsWhich of the following represents an inverse proportion?
Step-by-Step Solution
Speed and time are in inverse proportion. As speed increases, the time taken to cover a fixed distance decreases.
Detailed Options Breakdown
Option : Distance travelled and time taken at a constant speed
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Direct and Inverse Proportions.
Option 1: Time taken for a journey and speed of the vehicle (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Weight of wheat and its total cost
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Direct and Inverse Proportions.
Option 3: Number of days and amount earned if daily wage is fixed
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Direct and Inverse Proportions.
💡 Study Guide: This question tests core syllabus concepts from Direct and Inverse Proportions. For formulas, key summaries, and mock exam reference guides, read the full Direct and Inverse Proportions Revision Notes.