A train 300 m long crossed a platform 900 m long in 1 minute 12 seconds. The speed of the train in km/hr was:
A. 45
B. 50
C. 54
D. 60
ANSWER : 60
A train 300 m long crossed a platform 900 m long in 1 minute 12 seconds. The speed of the train in km/hr was:
A. 45
B. 50
C. 54
D. 60
ANSWER : 60