Excluding operational station stops, a city bus routes at an average of 42 km/h, and including stops its net average speed is 35 km/h. For how many minutes does it stop per hour? MCQ with Answer and Explanation
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Question #1
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A train 150 meters long is running at a speed of 90 km/h. How long will it take to cross a platform 200 meters long?
Correct Answer: Option C
Explanation:
Speed of train = 90 * (5/18) = 25 m/s. Total distance = 150 + 200 = 350 meters. Time taken = 350 / 25 = 14 seconds.
Speed of train = 90 * (5/18) = 25 m/s. Total distance = 150 + 200 = 350 meters. Time taken = 350 / 25 = 14 seconds.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A commuter train passes a standing track post in 6 seconds flat. If the length of the train is 150 meters, find its speed in km/h.
Correct Answer: Option C
Explanation:
Speed = 150 / 6 = 25 m/s. In km/h = 25 * (18/5) = 90 km/h.
Speed = 150 / 6 = 25 m/s. In km/h = 25 * (18/5) = 90 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A car travels a distance of 240 km at a certain speed. If the speed is increased by 10 km/h, it takes 4 hours for the journey. Find the original speed.
Correct Answer: Option B
Explanation:
New speed = 240 / 4 = 60 km/h. Since new speed is original speed + 10 km/h, the original speed = 60 - 10 = 50 km/h.
New speed = 240 / 4 = 60 km/h. Since new speed is original speed + 10 km/h, the original speed = 60 - 10 = 50 km/h.
This question belongs to:
Maths
Time Speed and Distance
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