A high-speed train travels at 162 km/h. How many meters does it cover in exactly 8 seconds? MCQ with Answer and Explanation
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Question #1
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Excluding stoppages, the speed of an intercity bus is 54 km/h and including stoppages it is 45 km/h. How many minutes does the bus stop per hour?
Correct Answer: Option A
Explanation:
Stoppage time per hour = (54 - 45) / 54 = 9 / 54 = 1/6 hour. In minutes = (1/6) * 60 = 10 minutes.
Stoppage time per hour = (54 - 45) / 54 = 9 / 54 = 1/6 hour. In minutes = (1/6) * 60 = 10 minutes.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A train passes a standing passenger in 8 seconds and crosses a 180-meter long platform in 17 seconds. Find the speed of the train.
Correct Answer: Option B
Explanation:
Time taken to pass the platform alone = 17 - 8 = 9 seconds. Speed of train = 180 / 9 = 20 m/s.
Time taken to pass the platform alone = 17 - 8 = 9 seconds. Speed of train = 180 / 9 = 20 m/s.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A car covers four successive 3 km stretches at speeds of 10 km/h, 20 km/h, 30 km/h and 60 km/h respectively. Its average speed for this distance is:
Correct Answer: Option D
Explanation:
Total distance = 4 * 3 = 12 km. Total time = 3/10 + 3/20 + 3/30 + 3/60 = (18 + 9 + 6 + 3)/60 = 36/60 = 0.6 hours. Average speed = 12 / 0.6 = 20 km/h.
Total distance = 4 * 3 = 12 km. Total time = 3/10 + 3/20 + 3/30 + 3/60 = (18 + 9 + 6 + 3)/60 = 36/60 = 0.6 hours. Average speed = 12 / 0.6 = 20 km/h.
This question belongs to:
Maths
Time Speed and Distance
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