A train moves with the speed of 180 km/hr; then its speed in metros per-second is:

A train moves with the speed of 180 km/hr; then its speed in metros per-second is:

A train moves with the speed of 180 km/hr; then its speed in metros per-second is: 


A. 5 
B. 30 
C. 40 
D. 50 

ANSWER : D.