A delivery coach covers a path of 210 km in 3 hours 30 minutes. What should be its speed to wrap the same distance in exactly 3 hours? MCQ with Answer and Explanation
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Question #1
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A cyclist covers a 1500-meter course in 5 minutes. Find his speed in km/h.
Correct Answer: Option A
Explanation:
Time = 5 minutes = 300 seconds. Speed = 1500 / 300 = 5 m/s. Converting to km/h = 5 * (18/5) = 18 km/h.
Time = 5 minutes = 300 seconds. Speed = 1500 / 300 = 5 m/s. Converting to km/h = 5 * (18/5) = 18 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A car covers a distance of 120 km at 40 km/h and another 180 km at 60 km/h. Find the average speed for the complete trip.
Correct Answer: Option C
Explanation:
Total distance = 120 + 180 = 300 km. Time 1 = 120 / 40 = 3 hours. Time 2 = 180 / 60 = 3 hours. Total time = 6 hours. Average speed = 300 / 6 = 50 km/h.
Total distance = 120 + 180 = 300 km. Time 1 = 120 / 40 = 3 hours. Time 2 = 180 / 60 = 3 hours. Total time = 6 hours. Average speed = 300 / 6 = 50 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A dog sees a cat at a distance of 150 meters. The cat starts running at 12 km/h and the dog chases it at 15 km/h. How much distance will the cat cover before being caught?
Correct Answer: Option D
Explanation:
Relative speed = 15 - 12 = 3 km/h = 3 * (5/18) = 5/6 m/s. Time to catch = 150 / (5/6) = 180 seconds. Distance covered by cat = Speed of cat * Time = (12 * 5/18) * 180 = (10/3) * 180 = 600 meters.
Relative speed = 15 - 12 = 3 km/h = 3 * (5/18) = 5/6 m/s. Time to catch = 150 / (5/6) = 180 seconds. Distance covered by cat = Speed of cat * Time = (12 * 5/18) * 180 = (10/3) * 180 = 600 meters.
This question belongs to:
Maths
Time Speed and Distance
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