A train running at 72 km/h passes an active signal pole in 10 seconds. Find the length of the train. MCQ with Answer and Explanation
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Question #1
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A passenger notice that a train passes him in 4 seconds. If the train is 120 meters long, what is its speed in km/h?
Correct Answer: Option A
Explanation:
Speed = 120 / 4 = 30 m/s. In km/h = 30 * (18/5) = 108 km/h.
Speed = 120 / 4 = 30 m/s. In km/h = 30 * (18/5) = 108 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A motorboat registers a speed of 14 km/h in still water. If the river current tracks at 2 km/h, find the duration required to complete a 48 km downstream course.
Correct Answer: Option D
Explanation:
Downstream speed = 14 + 2 = 16 km/h. Time taken = Distance / Downstream speed = 48 / 16 = 3 hours.
Downstream speed = 14 + 2 = 16 km/h. Time taken = Distance / Downstream speed = 48 / 16 = 3 hours.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A cyclist covers 1200 meters in 4 minutes flat. Find his speed index in km/h.
Correct Answer: Option A
Explanation:
Time = 4 minutes = 240 seconds. Speed = 1200 / 240 = 5 m/s. Converting to km/h = 5 * (18/5) = 18 km/h.
Time = 4 minutes = 240 seconds. Speed = 1200 / 240 = 5 m/s. Converting to km/h = 5 * (18/5) = 18 km/h.
This question belongs to:
Maths
Time Speed and Distance
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