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Q. A man completed a certain journey by a car. If he covered 30% of the distance at the speed of 20km/hr, 60% of the distance at 40km/hr and the remaining distance at 10km/hr; his average speed for the whole journey was ?

  • (A) 25 km/hr
  • (B) 28 km/hr
  • (C) 30 km/hr
  • (D) 33 km/hr
  • Correct Answer - Option(A)
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  • Filed under category Math
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