Problems on Trains

Q31. A train 80m long moving at a speed of 40 km/hr crosses a train 100 m long comming from opposite direction on parallel tracks in 5 sec. The speed of the second train is
(a) 72.2 km/hr
(b) 77.5 km/hr
(c) 83.7 km/hr
(d) 89.6 km/hr

Q32. A train is running at the rate of 60 km/hr. A man is going in the same direction parallel to the train at 20 km/hr. If the train crosses the man in 18 seconds, the length of the train be
(a) 200 m
(b) 220 m
(c) 225 m
(d) 245 m

Q33. A 120 m long train takes 10 seconds to cross a man standing on a platform. The speed of the train is
(a) 6 m/sec
(b) 12 m/sec
(c) 16 m/sec
(d) 20 m/sec

Q34. Two trains running in opposite directions cross a man standing on the platform in 25 secs and 15 seconds respectively and they cross each other in 20 seconds. The ratio of their speed is
(a) 1 : 1
(b) 1 : 2
(c) 2 : 1
(d) 2 : 3

Q35. Convert 20 m/sec into km/hr
(a) 65 km/hr
(b) 68 km/hr
(c) 72 km/hr
(d) 79 km/hr

Q36. A train travelling at 40 km/hr completely crosses another train having half its length and travelling in the opposite direction at 60 km/hr. in 9 seonds. If it passes a platform in 2 minutes, the length of the platform is
(a) 1076.32 m
(b) 1132.12 m
(c) 1166.66 m
(d) 1197.16 m

Q37. A train 150 m long takes 10 seconds to cross a man walking at 5 km/hr in the direction opposite to that of the train. Find the speed of the train.
(a) 45 km/hr
(b) 49 km/hr
(c) 53 km/hr
(d) 55 km/hr

Q38. A 80 m long train is running at 72 km/hr. In how much time will it cross an electric pole ?
(a) 4 sec
(b) 5 sec
(c) 6 sec
(d) 7 sec

1 2 3 4