A train passes a pedestrian standing on a platform in 8 seconds and passes the platform itself, which is 200 meters long, in 18 seconds. Find the speed of the train in km/h. MCQ with Answer and Explanation
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Question #1
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A thief is spotted by a policeman from a distance of 250 meters. The thief runs at 11 km/h and the policeman chases him at 13 km/h. Find the distance covered by the thief before he is caught.
Correct Answer: Option B
Explanation:
Relative speed = 13 - 11 = 2 km/h. Time to catch the thief = 0.25 km / 2 km/h = 0.125 hours. Distance covered by thief = Speed * Time = 11 km/h * 0.125 hours = 1.375 km = 1375 meters.
Relative speed = 13 - 11 = 2 km/h. Time to catch the thief = 0.25 km / 2 km/h = 0.125 hours. Distance covered by thief = Speed * Time = 11 km/h * 0.125 hours = 1.375 km = 1375 meters.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A train 200 meters long passes a static utility pole in 10 seconds. Find the time it takes to completely pass a platform of length 400 meters.
Correct Answer: Option C
Explanation:
Speed of train = 200 / 10 = 20 m/s. Total distance to pass platform = 200 + 400 = 600 meters. Time taken = 600 / 20 = 30 seconds.
Speed of train = 200 / 10 = 20 m/s. Total distance to pass platform = 200 + 400 = 600 meters. Time taken = 600 / 20 = 30 seconds.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A passenger coach locomotive 200 meters long passes a clear roadside post marker in 10 seconds flat. Find the time needed to cross an extensions platform 440 meters long.
Correct Answer: Option A
Explanation:
Speed of coach locomotive = 200 / 10 = 20 m/s. Total distance to clear platform stretch = 200 + 440 = 640 meters. Time required = 640 / 20 = 32 seconds.
Speed of coach locomotive = 200 / 10 = 20 m/s. Total distance to clear platform stretch = 200 + 440 = 640 meters. Time required = 640 / 20 = 32 seconds.
This question belongs to:
Maths
Time Speed and Distance
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