How long will a person take to walk around a square field of side 45 meters if his speed is 9 km/h? MCQ with Answer and Explanation
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Question #1
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A train 130 meters long passes a bridge of length 270 meters in 30 seconds. Find the speed of the train in km/h.
Correct Answer: Option A
Explanation:
Total distance = 130 + 270 = 400 meters. Speed = 400 / 30 = 40/3 m/s. In km/h = (40/3) * (18/5) = 8 * 6 = 48 km/h.
Total distance = 130 + 270 = 400 meters. Speed = 400 / 30 = 40/3 m/s. In km/h = (40/3) * (18/5) = 8 * 6 = 48 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A high-speed train covers 450 km in 3 hours. Find its speed in meters per second.
Correct Answer: Option C
Explanation:
Speed = 450 / 3 = 150 km/h. In m/s = 150 * (5/18) = 750 / 18 = 41.67 m/s.
Speed = 450 / 3 = 150 km/h. In m/s = 150 * (5/18) = 750 / 18 = 41.67 m/s.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A suspect flees at 6:00 AM at a uniform speed of 50 km/h. The enforcement squad tracks pursuit at 7:00 AM at 60 km/h. At what time will the squad apprehend the suspect?
Correct Answer: Option B
Explanation:
By 7:00 AM, the suspect has traveled for 1 hour and covered 50 km. Relative tracking speed = 60 - 50 = 10 km/h. Time taken to catch = 50 / 10 = 5 hours. Apprehension time = 7:00 AM + 5 hours = 12:00 PM.
By 7:00 AM, the suspect has traveled for 1 hour and covered 50 km. Relative tracking speed = 60 - 50 = 10 km/h. Time taken to catch = 50 / 10 = 5 hours. Apprehension time = 7:00 AM + 5 hours = 12:00 PM.
This question belongs to:
Maths
Time Speed and Distance
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