A person runs around a circular track of circumference 500 meters. If his speed is 18 km/h, how many rounds can he complete in 10 minutes? MCQ with Answer and Explanation
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Question #1
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A train 120 meters long passes a pole in 6 seconds. What is the speed of the train in km/h?
Correct Answer: Option D
Explanation:
Speed of train = 120 / 6 = 20 m/s. In km/h = 20 * (18/5) = 72 km/h.
Speed of train = 120 / 6 = 20 m/s. In km/h = 20 * (18/5) = 72 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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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 C
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 #3
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A boatman can row 4.5 km/h in still water. If the river flows at 1.5 km/h, it takes him 2 hours to row to a place and come back. How far is the place?
Correct Answer: Option A
Explanation:
Downstream speed = 4.5 + 1.5 = 6 km/h. Upstream speed = 4.5 - 1.5 = 3 km/h. Let distance be d. d/6 + d/3 = 2 => 3d/6 = 2 => d/2 = 2 => d = 4 km.
Downstream speed = 4.5 + 1.5 = 6 km/h. Upstream speed = 4.5 - 1.5 = 3 km/h. Let distance be d. d/6 + d/3 = 2 => 3d/6 = 2 => d/2 = 2 => d = 4 km.
This question belongs to:
Maths
Time Speed and Distance
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