Correct Answer: 150 m
Explanation:
While Arun's 1000 m, B runs 1000 - 100 = 900 m and C runs 1000 - 200 = 800 m.
∴ While B runs 900 m, C runs 800 m.
∴ While B runs 1350 m; C runs 800 / 900 × 1350 = 1200 m
∴ B can beat C by 1350 - 1200 = 150 m.
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