Two trains, one `152.5` m long and the other `157.5` m long, coming from opposite directions crossed each other in `9.3` seconds. The combined speed of the two trains every hour would then be : Options are (a) 130 km (b) 125 km (c) 115 km (d) 120 km.

Options

A. `130` km
B. `125` km
C. `115` km
D. `120` km

Answer

D