A train 120 meters long crosses an electrical signal pole in 6 seconds. Find its speed in km/h. MCQ with Answer and Explanation
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Question #1
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A track sprinter matches a 300-meter straight heat in 30 seconds. Find his moving speed in km/h.
Correct Answer: Option A
Explanation:
Speed in m/s = 300 / 30 = 10 m/s. In km/h = 10 * (18/5) = 36 km/h.
Speed in m/s = 300 / 30 = 10 m/s. In km/h = 10 * (18/5) = 36 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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In a 100-meter race, A can beat B by 15 meters and C by 28 meters. In a race of 85 meters, by how many meters can B beat C?
Correct Answer: Option D
Explanation:
When A covers 100m, B covers 85m and C covers 72m. This means in a distance where B covers 85 meters, C covers 72 meters. Therefore, B beats C by 85 - 72 = 13 meters.
When A covers 100m, B covers 85m and C covers 72m. This means in a distance where B covers 85 meters, C covers 72 meters. Therefore, B beats C by 85 - 72 = 13 meters.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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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
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