A. 2.5 min B. 3 min
C. 3.2 min D. 3.5 min
17. A train 800 metres long is running at a speed of 78 km/hr. If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is:
A. 130 B. 360
C. 500 D. 540
18. A 300 metre long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform?
A. 320 m B. 350 m
C. 650 m D. Data inadequate
19. A train speeds past a pole in 15 seconds and a platform 100 m long in 25 seconds. Its length is:
A. 50 m B. 150 m
C. 200 m D. Data inadequate
20. A train moves past a telegraph post and a bridge 264 m long in 8 seconds and 20 seconds respectively. What is the speed of the train?
A. 69.5 km/hr B. 70 km/hr
C. 79 km/hr D. 79.2 km/hr
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