Question:
A tractor travelled a distance 5 m. What is the radius of the rear wheel?
I. The front wheel rotates `N` times more than the rear wheel over this distance.
II. The circumference of the rear wheel is `r` times that of the front wheel.
A tractor travelled a distance 5 m. What is the radius of the rear wheel?
I. The front wheel rotates `N` times more than the rear wheel over this distance.
II. The circumference of the rear wheel is `r` times that of the front wheel.
I. The front wheel rotates `N` times more than the rear wheel over this distance.
II. The circumference of the rear wheel is `r` times that of the front wheel.
Show Hint
When two statements provide complementary information — one gives ratio, the other links it to actual distance — they must be combined.
Updated On: Aug 6, 2025
- The question cannot be answered even with the help of both the statements taken together.
- The question can be answered by any one of the statements
- Each statement alone is sufficient to answer the question, but not the other one.
- Both statements I and II together are needed to answer the question
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The Correct Option is D
Solution and Explanation
I: Only gives the relative number of rotations, no actual wheel size.
II: Only gives ratio of circumferences, no absolute measure.
Combining I and II: The given distance + relation between rotations and circumferences gives absolute circumference of the rear wheel $\Rightarrow$ radius can be found. %Quick tip
II: Only gives ratio of circumferences, no absolute measure.
Combining I and II: The given distance + relation between rotations and circumferences gives absolute circumference of the rear wheel $\Rightarrow$ radius can be found. %Quick tip
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