A train of length 120 meters takes 40 seconds to cross a tunnel of – McqOptions

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1.	A train of length 120 meters takes 40 seconds to cross a tunnel of length 320 meters. What is the speed of the train in km/hr
A.	8 m/sec
B.	9 m/sec
C.	11 m/sec
D.	13 m/sec
Answer» D. 13 m/sec

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