A wheel makes 1000 revolutions to cover a distance of 880 meters. Find the diameter of the wheel. MCQ with Answer and Explanation
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Question #1
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A locomotive express train passes a milestone column track point in 10 seconds flat. If the speed index of the train records at 54 km/h, find the length of the train layout.
Correct Answer: Option C
Explanation:
Speed of train = 54 * (5/18) = 15 m/s. Length of train layout = Speed * Time = 15 * 10 = 150 meters.
Speed of train = 54 * (5/18) = 15 m/s. Length of train layout = Speed * Time = 15 * 10 = 150 meters.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A person runs around a circular track of circumference 500 meters. If his speed is 18 km/h, how many rounds can he complete in 10 minutes?
Correct Answer: Option C
Explanation:
Speed = 18 km/h = 5 m/s. Time = 10 minutes = 600 seconds. Total distance = 5 * 600 = 3000 meters. Number of rounds = 3000 / 500 = 6 rounds.
Speed = 18 km/h = 5 m/s. Time = 10 minutes = 600 seconds. Total distance = 5 * 600 = 3000 meters. Number of rounds = 3000 / 500 = 6 rounds.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A motor car finishes a journey in 6 hours. It covers the first half of the distance at 40 km/h and the second half at 20 km/h. Find the total distance covered.
Correct Answer: Option D
Explanation:
Let the half distance be d. d / 40 + d / 20 = 6 => 3d / 40 = 6 => 3d = 240 => d = 80 km. Total distance = 2d = 160 km.
Let the half distance be d. d / 40 + d / 20 = 6 => 3d / 40 = 6 => 3d = 240 => d = 80 km. Total distance = 2d = 160 km.
This question belongs to:
Maths
Time Speed and Distance
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