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Q: A man goes from C to D at 40 Km/h and he returns from D to C at X km/h. If the average speed of the man for the whole journey is 60 km/h, then what is the value of x?
  • A. 100
  • B. 120
  • C. 110
  • D. 80
Correct Answer: Option B -
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Explanations:

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