If a student walks from his house to school at 5 km/h, he is late by 10 minutes. However, if he walks at 6 km/h, he is late by only 2 minutes. Find the distance between his house and school. MCQ with Answer and Explanation
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Question #1
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If a person covers a distance of 150 km in 4 hours, find his speed in meters per second.
Correct Answer: Option B
Explanation:
Speed = 150 / 4 = 37.5 km/h. Converting to m/s = 37.5 * (5/18) = 187.5 / 18 = 10.41 m/s.
Speed = 150 / 4 = 37.5 km/h. Converting to m/s = 37.5 * (5/18) = 187.5 / 18 = 10.41 m/s.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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Two trains 120 meters and 130 meters long are running in opposite directions at speeds of 45 km/h and 45 km/h respectively. In what time will they cross each other?
Correct Answer: Option A
Explanation:
Total distance = 120 + 130 = 250 meters. Relative speed in opposite directions = 45 + 45 = 90 km/h = 25 m/s. Time taken = 250 / 25 = 10 seconds.
Total distance = 120 + 130 = 250 meters. Relative speed in opposite directions = 45 + 45 = 90 km/h = 25 m/s. Time taken = 250 / 25 = 10 seconds.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A train 180 meters long passes a pole in 9 seconds. What is the speed of the train in km/h?
Correct Answer: Option A
Explanation:
Speed of train = 180 / 9 = 20 m/s. In km/h = 20 * (18/5) = 72 km/h.
Speed of train = 180 / 9 = 20 m/s. In km/h = 20 * (18/5) = 72 km/h.
This question belongs to:
Maths
Time Speed and Distance
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