Discussion

Explanation:

Initially the distance between policeman and thief = 500m = 0.5 km

Relative speed of policeman with respect to thief = 12 - 10 = 2 kmph

Time taken by the policeman to catch the thief = 0.5/2 = 0.25 hours.

∴ The distance covered by the policeman = 0.25 × 12 = 3 kms

Hence, option (c).

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