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
Choose the correct answer:
A) 334
B) 160
C) 387
D) 278
E) 112

Rationale: answer : b ) 160 km / h
Answer: B