ANSWERS: 1
  • (d) None of these For the second train: S2 = 400 km / 5 h = 400/5 km/h = 80 km/h For the first train (if S1/S2 = 7/8): S1 = (7/8) S2 = (7/8) 80 km/h = 70 km/h

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