A train 140 meters long passes a roadside platform 260 meters long in 20 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 bus moving at 42 km/h covers a distance in 8 hours. At what speed must it travel to cover the same distance in 6 hours?
Correct Answer: Option D
Explanation:
Distance = 42 * 8 = 336 km. Required speed = 336 / 6 = 56 km/h.
Distance = 42 * 8 = 336 km. Required speed = 336 / 6 = 56 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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Two trains 120 meters and 130 meters long are running in opposite directions at speeds of 45 km/h and 45 km/h respectively. In what time will they cross each other?
Correct Answer: Option D
Explanation:
Total distance = 120 + 130 = 250 meters. Relative speed in opposite directions = 45 + 45 = 90 km/h = 25 m/s. Time taken = 250 / 25 = 10 seconds.
Total distance = 120 + 130 = 250 meters. Relative speed in opposite directions = 45 + 45 = 90 km/h = 25 m/s. Time taken = 250 / 25 = 10 seconds.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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Excluding stoppages, the speed of a bus is 54 km/h and including stoppages, it is 45 km/h. For how many minutes does the bus stop per hour?
Correct Answer: Option D
Explanation:
Stoppage time per hour = (Fast Speed - Slow Speed) / Fast Speed = (54 - 45) / 54 = 9 / 54 = 1/6 hour. In minutes = (1/6) * 60 = 10 minutes.
Stoppage time per hour = (Fast Speed - Slow Speed) / Fast Speed = (54 - 45) / 54 = 9 / 54 = 1/6 hour. In minutes = (1/6) * 60 = 10 minutes.
This question belongs to:
Maths
Time Speed and Distance
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