A person walks from his home to his office at 3 km/h and reaches 15 minutes late. If he walks at 4 km/h, he reaches 5 minutes late. Find the distance. MCQ with Answer and Explanation
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Question #1
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Excluding stoppages, a bus travels at 54 km/h and including stoppages it travels at 45 km/h. How many minutes does the bus stop per hour?
Correct Answer: Option D
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 pedestrian standing on a platform in 8 seconds and passes the platform itself, which is 200 meters long, in 18 seconds. Find the speed of the train in km/h.
Correct Answer: Option A
Explanation:
Time taken to cross the platform alone = 18 - 8 = 10 seconds. Speed of train = 200 / 10 = 20 m/s. In km/h = 20 * (18/5) = 72 km/h.
Time taken to cross the platform alone = 18 - 8 = 10 seconds. Speed of train = 200 / 10 = 20 m/s. In km/h = 20 * (18/5) = 72 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A train 120 meters long running at 54 km/h passes a standing pedestrian. Find the time taken to cross.
Correct Answer: Option D
Explanation:
Speed of train = 54 * (5/18) = 15 m/s. Time taken = 120 / 15 = 8 seconds.
Speed of train = 54 * (5/18) = 15 m/s. Time taken = 120 / 15 = 8 seconds.
This question belongs to:
Maths
Time Speed and Distance
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