If a person covers a distance of 180 km in 4 hours, find his speed in meters per second. MCQ with Answer and Explanation
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Question #1
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A motor vehicle completes a journey in 5 hours. It handles the first half of the stretch at 50 km/h and the second half at 30 km/h. Find the total distance wrapped.
Correct Answer: Option D
Explanation:
Let the half distance be d. d / 50 + d / 30 = 5 => 8d / 150 = 5 => 8d = 750 => d = 93.75 km. Total distance = 2d = 187.5 km.
Let the half distance be d. d / 50 + d / 30 = 5 => 8d / 150 = 5 => 8d = 750 => d = 93.75 km. Total distance = 2d = 187.5 km.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A pedestrian walks at a constant pace of 5 km/h. How many meters can he cover in exactly 18 minutes?
Correct Answer: Option C
Explanation:
Speed = 5 km/h = 5000 meters / 60 minutes = 83.33 meters per minute. Distance in 18 minutes = 83.33 * 18 = 1500 meters.
Speed = 5 km/h = 5000 meters / 60 minutes = 83.33 meters per minute. Distance in 18 minutes = 83.33 * 18 = 1500 meters.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A man walks from his residence to a focal point at 4 km/h and arrives 10 minutes late. If he increases his speed to 5 km/h, he arrives 2 minutes early. Find the distance.
Correct Answer: Option A
Explanation:
Time difference = 10 - (-2) = 12 minutes = 12/60 = 0.2 hours. Let distance be d. d / 4 - d / 5 = 0.2 => d / 20 = 0.2 => d = 4 km.
Time difference = 10 - (-2) = 12 minutes = 12/60 = 0.2 hours. Let distance be d. d / 4 - d / 5 = 0.2 => d / 20 = 0.2 => d = 4 km.
This question belongs to:
Maths
Time Speed and Distance
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