A man rides a bicycle at 12 km/h from his house to his school and reaches 5 minutes late. Next day he increases his speed to 15 km/h and reaches 5 minutes early. Find the distance between his house and school. 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 car covers a distance of 180 km at a uniform speed. If the speed is increased by 10 km/h, the journey takes 3 hours. Find the initial speed of the car.
Correct Answer: Option B
Explanation:
New speed = 180 / 3 = 60 km/h. Since the new speed is 10 km/h faster than the original speed, original speed = 60 - 10 = 50 km/h.
New speed = 180 / 3 = 60 km/h. Since the new speed is 10 km/h faster than the original speed, original speed = 60 - 10 = 50 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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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 D
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
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