A truck travels 450 meters in 30 seconds. Find its speed in km/h. MCQ with Answer and Explanation
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Question #1
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A train 180 meters long is tracking at a uniform speed of 72 km/h. How many seconds will it take to clear a stationary passenger standing on a platform?
Correct Answer: Option B
Explanation:
Speed of train = 72 * (5/18) = 20 m/s. Time taken to clear the passenger = 180 / 20 = 9 seconds.
Speed of train = 72 * (5/18) = 20 m/s. Time taken to clear the passenger = 180 / 20 = 9 seconds.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A sedan tracks from location M to N at 50 km/h and manages the return tract to M at 70 km/h. What is the average speed recorded across the round journey?
Correct Answer: Option A
Explanation:
Average Speed across course = 2xy / (x + y) = (2 * 50 * 70) / (50 + 70) = 7000 / 120 = 58.33 km/h.
Average Speed across course = 2xy / (x + y) = (2 * 50 * 70) / (50 + 70) = 7000 / 120 = 58.33 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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If a person covers a distance of 180 km in 4 hours, find his speed in meters per second.
Correct Answer: Option D
Explanation:
Speed = 180 / 4 = 45 km/h. Converting to m/s = 45 * (5/18) = 12.5 m/s.
Speed = 180 / 4 = 45 km/h. Converting to m/s = 45 * (5/18) = 12.5 m/s.
This question belongs to:
Maths
Time Speed and Distance
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