A train 260 meters long passes a roadside signal box in 13 seconds. How long will it take to pass a bridge 440 meters long? MCQ with Answer and Explanation
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Question #1
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A man covers 3/5 of his total journey by rail at 40 km/h and the remaining 2/5 by bus at 30 km/h. If the total distance is 150 km, what is the total time taken?
Correct Answer: Option D
Explanation:
Distance by rail = 150 * (3/5) = 90 km. Time by rail = 90 / 40 = 2.25 hours. Distance by bus = 150 - 90 = 60 km. Time by bus = 60 / 30 = 2 hours. Total time = 2.25 + 2 = 4.25 hours.
Distance by rail = 150 * (3/5) = 90 km. Time by rail = 90 / 40 = 2.25 hours. Distance by bus = 150 - 90 = 60 km. Time by bus = 60 / 30 = 2 hours. Total time = 2.25 + 2 = 4.25 hours.
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Maths
Time Speed and Distance
Question #2
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A train 140 meters long is traveling at 72 km/h. How long will it take to cross a platform 220 meters long?
Correct Answer: Option D
Explanation:
Speed of train = 72 * (5/18) = 20 m/s. Total distance = 140 + 220 = 360 meters. Time taken = 360 / 20 = 18 seconds.
Speed of train = 72 * (5/18) = 20 m/s. Total distance = 140 + 220 = 360 meters. Time taken = 360 / 20 = 18 seconds.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A train 100 meters long completely passes a static pole in 5 seconds. Find its speed in km/h.
Correct Answer: Option B
Explanation:
Speed = 100 / 5 = 20 m/s. In km/h = 20 * (18/5) = 72 km/h.
Speed = 100 / 5 = 20 m/s. In km/h = 20 * (18/5) = 72 km/h.
This question belongs to:
Maths
Time Speed and Distance
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