An express train covers a distance of 450 km in 5 hours. If a slower local train runs at half the speed of the express train, how much time will the local train take to cover 360 km? MCQ with Answer and Explanation
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Question #1
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Two express trains 200 meters and 150 meters long are moving in the same direction at 72 km/h and 54 km/h respectively. Find the time taken by the faster train to cross the slower train completely.
Correct Answer: Option D
Explanation:
Total distance = 200 + 150 = 350 meters. Relative speed in same direction = 72 - 54 = 18 km/h = 5 m/s. Time taken = 350 / 5 = 70 seconds.
Total distance = 200 + 150 = 350 meters. Relative speed in same direction = 72 - 54 = 18 km/h = 5 m/s. Time taken = 350 / 5 = 70 seconds.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A train 100 meters long passes a platform 400 meters long in 25 seconds. Find the speed of the train in km/h.
Correct Answer: Option B
Explanation:
Total distance = 100 + 400 = 500 meters. Speed = 500 / 25 = 20 m/s. In km/h = 20 * (18/5) = 72 km/h.
Total distance = 100 + 400 = 500 meters. Speed = 500 / 25 = 20 m/s. In km/h = 20 * (18/5) = 72 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A train 150 meters long is running at 72 km/h. How long will it take to pass a platform of length 250 meters?
Correct Answer: Option C
Explanation:
Speed = 72 * (5/18) = 20 m/s. Total distance = 150 + 250 = 400 meters. Time = 400 / 20 = 20 seconds.
Speed = 72 * (5/18) = 20 m/s. Total distance = 150 + 250 = 400 meters. Time = 400 / 20 = 20 seconds.
This question belongs to:
Maths
Time Speed and Distance
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