A train of length 560 metres takes 90 seconds to cross a tunnel of length 340 metres. What is the speed of the train in km/hr?
Options:
A) 36 km/hr. B) 46 km/hr. C) 30 km/hr. D) 48 km/hr. E) None
Sol.   Speed = [560+340 / 90] m/sec = [900 / 90 * 18/5] km/hr = 36km/hr.   36 km/hr.nswer 36 km/hr.
<result>A</result>
A train of length 560 metres takes 90 seconds to cross a tunnel of length 340 metres. What is the speed of the train in km/hr?