A missile travels at a speed of 1440 km/h. Find the distance covered by the missile in exactly 12 seconds. MCQ with Answer and Explanation
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Question #1
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A civilian steps across a 600-meter long overpass bridge in exactly 5 minutes. Find his speed in km/h.
Correct Answer: Option C
Explanation:
Time = 5 minutes = 300 seconds. Speed = 600 / 300 = 2 m/s. In km/h = 2 * (18/5) = 7.2 km/h.
Time = 5 minutes = 300 seconds. Speed = 600 / 300 = 2 m/s. In km/h = 2 * (18/5) = 7.2 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A person travels a distance of 120 km at 40 km/h and returns at 60 km/h. Find the total time spent for the entire round trip.
Correct Answer: Option C
Explanation:
Time for onward journey = 120 / 40 = 3 hours. Time for return journey = 120 / 60 = 2 hours. Total time = 3 + 2 = 5 hours.
Time for onward journey = 120 / 40 = 3 hours. Time for return journey = 120 / 60 = 2 hours. Total time = 3 + 2 = 5 hours.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A train passes a standing person on a platform in 8 seconds and crosses the platform itself, which is 240 meters long, in 20 seconds. Find the length of the train.
Correct Answer: Option B
Explanation:
Time taken to cross the platform distance alone = 20 - 8 = 12 seconds. Speed of the train = 240 / 12 = 20 m/s. Length of the train = Speed * Time to pass the person = 20 * 8 = 160 meters.
Time taken to cross the platform distance alone = 20 - 8 = 12 seconds. Speed of the train = 240 / 12 = 20 m/s. Length of the train = Speed * Time to pass the person = 20 * 8 = 160 meters.
This question belongs to:
Maths
Time Speed and Distance
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