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    • Question

      In a 30 km race, M, N, and O are running at uniform speed.

      If ‘M’ beats ‘N’ by 6 km, and ‘N’ beats ‘O’ by 4 km, then by how many metres does ‘M’ beat ‘O’?
      A 9200 m Correct Answer Incorrect Answer
      B 2550 m Correct Answer Incorrect Answer
      C 3110 m Correct Answer Incorrect Answer
      D 7400 m Correct Answer Incorrect Answer

      Solution

      ATQ,

      When ‘M’ covers 30 km, ‘N’ will cover 24 km

      Similarly, when ‘N’ covers 30 km, ‘O’ covers 26 km

      Therefore, when ‘N’ covers 24 km, then ‘O’ will cover = (24 × 26) / 30 = 20.8 km

      Therefore, ‘M’ will beat ‘O’ by = 30 – 20.8 = 9.2 km = 9200 metres

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