The circumferences of two circular paths are in ratio 2:7. If the smaller path has radius 8 m, what is the radius of the larger path?

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1. Circumference $C=2\pi r$, so $C$ is proportional to $r$. Thus radii ratio = $2:7$.
2. Smaller radius = 8 corresponds to the 2 part. One part = $8/2=4$.
3. Larger radius = $7	imes 4 = 28$, so option **(a)** is correct.

FINAL_ANSWER: a

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