A train running at 54 km/h crosses a bridge 150 meters long in 18 seconds. Find the length of the train. MCQ with Answer and Explanation
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Question #1
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A sound wave travels at 343 m/s. How much distance in kilometers does it cover in 10 seconds?
Correct Answer: Option D
Explanation:
Distance = Speed * Time = 343 * 10 = 3430 meters. Converting to kilometers = 3430 / 1000 = 3.43 km.
Distance = Speed * Time = 343 * 10 = 3430 meters. Converting to kilometers = 3430 / 1000 = 3.43 km.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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Two cyclists start from the same place in opposite directions. One goes towards North at 18 km/h and the other goes South at 22 km/h. What is the distance between them after 30 minutes?
Correct Answer: Option B
Explanation:
Relative speed in opposite directions = 18 + 22 = 40 km/h. Time = 30 minutes = 0.5 hours. Distance = 40 * 0.5 = 20 km.
Relative speed in opposite directions = 18 + 22 = 40 km/h. Time = 30 minutes = 0.5 hours. Distance = 40 * 0.5 = 20 km.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A train 100 meters long passes a static observer in 5 seconds. How long will it take to pass a platform 260 meters long?
Correct Answer: Option D
Explanation:
Speed of train = 100 / 5 = 20 m/s. Total distance to pass platform = 100 + 260 = 360 meters. Time taken = 360 / 20 = 18 seconds.
Speed of train = 100 / 5 = 20 m/s. Total distance to pass platform = 100 + 260 = 360 meters. Time taken = 360 / 20 = 18 seconds.
This question belongs to:
Maths
Time Speed and Distance
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