A train traveling at 72 km/h crosses a platform 160 meters long in 18 seconds. Find the length of the train. MCQ with Answer and Explanation
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Question #1
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A train passes a static observer in 6 seconds and a platform 160 meters long in 14 seconds. Find the length of the train.
Correct Answer: Option D
Explanation:
Time to cross the platform distance alone = 14 - 6 = 8 seconds. Speed of train = 160 / 8 = 20 m/s. Length of train = Speed * Time to pass observer = 20 * 6 = 120 meters.
Time to cross the platform distance alone = 14 - 6 = 8 seconds. Speed of train = 160 / 8 = 20 m/s. Length of train = Speed * Time to pass observer = 20 * 6 = 120 meters.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A car tracks a total segment of 360 km. If the uniform speed is boosted by 15 km/h, it covers the course in 4 hours flat. Find the original speed.
Correct Answer: Option D
Explanation:
New speed = 360 / 4 = 90 km/h. Since the new speed is 15 km/h faster than original speed, original speed = 90 - 15 = 75 km/h.
New speed = 360 / 4 = 90 km/h. Since the new speed is 15 km/h faster than original speed, original speed = 90 - 15 = 75 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A sprinter tracks a 400-meter oval dash stretch in 44 seconds. Find his approximate pace in km/h.
Correct Answer: Option A
Explanation:
Speed = 400 / 44 m/s = 100 / 11 m/s. In km/h = (100 / 11) * (18/5) = 360 / 11 = 32.72 km/h.
Speed = 400 / 44 m/s = 100 / 11 m/s. In km/h = (100 / 11) * (18/5) = 360 / 11 = 32.72 km/h.
This question belongs to:
Maths
Time Speed and Distance
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