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
A. None of these
B. 160 km/h
C. 67.5 km/h
D. 90 km/h
Answer:B
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
A. None of these B. 160 km/h C. 67.5 km/h D. 90 km/h