A person can walk at 5 km/h. How many meters can he cover in 12 minutes? MCQ with Answer and Explanation
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Question #1
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In a 200-meter race, A finishes in 22 seconds and B finishes in 25 seconds. By what distance does A beat B?
Correct Answer: Option D
Explanation:
Speed of B = 200 / 25 = 8 m/s. Distance covered by B when A crosses the finish line at 22 seconds = 8 * 22 = 176 meters. Winning margin = 200 - 176 = 24 meters.
Speed of B = 200 / 25 = 8 m/s. Distance covered by B when A crosses the finish line at 22 seconds = 8 * 22 = 176 meters. Winning margin = 200 - 176 = 24 meters.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A high-speed train clears a stationary post column signal mast in 8 seconds and clears across the full station platform itself, which measures 240 meters long, in 20 seconds. Find the speed index of the train in km/h.
Correct Answer: Option B
Explanation:
Time taken to cross the platform span alone = 20 - 8 = 12 seconds. Speed of train = 240 / 12 = 20 m/s. In km/h index = 20 * (18/5) = 72 km/h.
Time taken to cross the platform span alone = 20 - 8 = 12 seconds. Speed of train = 240 / 12 = 20 m/s. In km/h index = 20 * (18/5) = 72 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A passenger coach locomotive 120 meters long passes a clear roadside post marker in 6 seconds flat. Find the time needed to cross an extensions platform 240 meters long.
Correct Answer: Option D
Explanation:
Speed of coach locomotive = 120 / 6 = 20 m/s. Total distance to clear platform stretch = 120 + 240 = 360 meters. Time required = 360 / 20 = 18 seconds.
Speed of coach locomotive = 120 / 6 = 20 m/s. Total distance to clear platform stretch = 120 + 240 = 360 meters. Time required = 360 / 20 = 18 seconds.
This question belongs to:
Maths
Time Speed and Distance
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