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Q: Mohan finished a journey by scooter in 5 hours. He travels the first half of the journey at 30 km/h and the second half of the journey at 20 km/h. The distance covered by him is:
  • A. 100 km
  • B. 130 km
  • C. 140 km
  • D. 120 km
Correct Answer: Option D -
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Explanations:

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