The speed of a train is 72 km/h. How many meters does it cross in 15 seconds? MCQ with Answer and Explanation
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Question #1
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Two trains start from stations A and B and travel towards each other at speeds of 50 km/h and 60 km/h respectively. At the time of their meeting, the second train has traveled 120 km more than the first. Find the distance between A and B.
Correct Answer: Option C
Explanation:
Let the time they travel before meeting be t hours. Distance difference = 60t - 50t = 10t = 120 km => t = 12 hours. Total distance = (50 + 60) * t = 110 * 12 = 1320 km.
Let the time they travel before meeting be t hours. Distance difference = 60t - 50t = 10t = 120 km => t = 12 hours. Total distance = (50 + 60) * t = 110 * 12 = 1320 km.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A train 140 meters long passes a stationary observer in 7 seconds. How long will it take to cross a platform 260 meters long?
Correct Answer: Option B
Explanation:
Speed of train = 140 / 7 = 20 m/s. Total distance to pass platform = 140 + 260 = 400 meters. Time required = 400 / 20 = 20 seconds.
Speed of train = 140 / 7 = 20 m/s. Total distance to pass platform = 140 + 260 = 400 meters. Time required = 400 / 20 = 20 seconds.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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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
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