A car covers a certain distance at 90 km/hour speed and returns back to the starting point at 60 km/hour speed. Find its average speed for the entire journey

  • 70 km/hour
  • 72 km/hour
  • 75 km/hour
  • 80 km/hour

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A car covers a certain distance at 90 km/hour speed and returns back to the starting point at 60 km/
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