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      Question

      A car covers 162 km in 3 hours. The bike’s speed is 4 m/s

      less than the car’s. Find the distance (in metres) travelled by the bike in 3 minutes 30 seconds.
      A 4,200 m Correct Answer Incorrect Answer
      B 8,500 m Correct Answer Incorrect Answer
      C 2,310 m Correct Answer Incorrect Answer
      D 1,100 m Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      Speed of car = (162/3) = 54 km/h = 54 × (5/18) = 15 m/s

      Speed of bike = 15 − 4 = 11 m/s

      3 minutes 30 seconds = 3 × 60 + 30 = 210 seconds

      Required distance = 11 × 210 = 2,310 metres

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