A train 125 meters long passes a running man in 10 seconds when both move in the same direction. If the speed of the man is 5 km/h, find the speed of the train. MCQ with Answer and Explanation
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Question #1
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A cyclist covers 400 meters in 1 minute 20 seconds. What is his speed in km/h?
Correct Answer: Option A
Explanation:
Time = 1 minute 20 seconds = 80 seconds. Speed = 400 / 80 = 5 m/s. In km/h = 5 * (18/5) = 18 km/h.
Time = 1 minute 20 seconds = 80 seconds. Speed = 400 / 80 = 5 m/s. In km/h = 5 * (18/5) = 18 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A person runs around a circular track of circumference 600 meters. If his speed is 18 km/h, how many rounds can he complete in 10 minutes?
Correct Answer: Option A
Explanation:
Speed = 18 km/h = 5 m/s. Time = 10 minutes = 600 seconds. Total distance covered = 5 * 600 = 3000 meters. Number of rounds = 3000 / 600 = 5 rounds.
Speed = 18 km/h = 5 m/s. Time = 10 minutes = 600 seconds. Total distance covered = 5 * 600 = 3000 meters. Number of rounds = 3000 / 600 = 5 rounds.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A boatman rows 30 km downstream and 18 km upstream, taking 3 hours for each leg of the journey. Find the speed of the boat in still water.
Correct Answer: Option C
Explanation:
Downstream speed = 30 / 3 = 10 km/h. Upstream speed = 18 / 3 = 6 km/h. Speed in still water = (10 + 6) / 2 = 8 km/h.
Downstream speed = 30 / 3 = 10 km/h. Upstream speed = 18 / 3 = 6 km/h. Speed in still water = (10 + 6) / 2 = 8 km/h.
This question belongs to:
Maths
Time Speed and Distance
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