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      Question

      Sneha cycles to her tuition class at a speed of 20 km/h and

      ends up reaching 3 hours late. Had she pedalled at 25 km/h, she would have reached exactly on time. Determine the total distance Sneha covered.
      A 415 km Correct Answer Incorrect Answer
      B 209 km Correct Answer Incorrect Answer
      C 322 km Correct Answer Incorrect Answer
      D 300 km Correct Answer Incorrect Answer

      Solution

      ATQ,

      (Let the actual time Sneha should take to reach the class = 't' hours

      Let the total distance = 'd' km

      We have,

      20(t + 3) = 20t + 60 = d

      Also,

      25t = d

      So, 20t + 60 = 25t

      So, 5t = 60

      So, t = 12

      So, d = 25t = 25 × 12 = 300 km

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