A runner tracks a circular field of circumference 600 meters. If his speed is 14.4 km/h, how many rounds can he complete in 15 minutes? MCQ with Answer and Explanation
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Question #1
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A cartwheel has a radius of 35 cm. How many revolutions must it make to cover a total distance of 1100 meters?
Correct Answer: Option D
Explanation:
Circumference = 2 * (22/7) * 35 = 220 cm = 2.2 meters. Total distance = 1100 meters. Number of revolutions = 1100 / 2.2 = 500.
Circumference = 2 * (22/7) * 35 = 220 cm = 2.2 meters. Total distance = 1100 meters. Number of revolutions = 1100 / 2.2 = 500.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A truck travels 450 meters in 30 seconds. Find its speed in km/h.
Correct Answer: Option A
Explanation:
Speed = 450 / 30 = 15 m/s. In km/h = 15 * (18/5) = 54 km/h.
Speed = 450 / 30 = 15 m/s. In km/h = 15 * (18/5) = 54 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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In a 100-meter race, A can beat B by 20 meters and B can beat C by 10 meters. By how many meters can A beat C in the same race?
Correct Answer: Option A
Explanation:
When A covers 100m, B covers 80m. When B covers 100m, C covers 90m. Thus, when B covers 80m, C covers 90 * (80 / 100) = 72m. Therefore, when A covers 100m, C covers 72m. A beats C by 100 - 72 = 28 meters.
When A covers 100m, B covers 80m. When B covers 100m, C covers 90m. Thus, when B covers 80m, C covers 90 * (80 / 100) = 72m. Therefore, when A covers 100m, C covers 72m. A beats C by 100 - 72 = 28 meters.
This question belongs to:
Maths
Time Speed and Distance
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