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Q. A man completes 30 km of a journey at 6 km/h and the remaining 40 kilometre in 5 h. his average speed for whole journey is

  • (A) 70/11 km /h
  • (B) 7 km/h
  • (C) 7.5 km/h
  • (D) 8 km/h
  • Correct Answer - Option(B)
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  • Filed under category Math
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