Q: Two trains A and B start simultaneously in the opposite direction from two points P and Q and arrive at their destinations 16 and 9 hours respectively after their meeting each other. At what speed does the second train B travel if the first train travels at 120 km/h

• 1
  90 km/h
• 2
  160 km/h
• 3
  67.5 km/h
• 4
  None of these