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In a 1 km race A beats B by 100 m. Which statement is true?

Competition practiceRaces & Circular Tracks
  • AA is 100 m/s faster than B
  • BA and B have speeds in the ratio 10 : 9
  • CWith a 100 m start, B would win
  • DB is 10% faster than A

Step-by-Step Solution

A runs 1000 m while B runs 900 m, so speeds are 10 : 9 ✓. With a 100 m start it would be a dead heat, not a B win. B is slower, and the gap is in metres, not m/s.
Answer: B) A and B have speeds in the ratio 10 : 9

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