A train of length 240 metres takes 60 seconds to cross a tunnel of length 450 metres. What is the speed of the train in km/hr?
Choose the most appropriate option:
A) 10 km/hr.
B) 20 km/hr.
C) 30 km/hr.
D) 40 km/hr.
E) None
Sol.   Speed = [240 + 450 / 60] m/sec = [690/ 60 * 18/5] km/hr = 41.4 km/hr.   Answer None
<result>E</result>
A train of length 240 metres takes 60 seconds to cross a tunnel of length 450 metres. What is the speed of the train in km/hr?