If a car travels at a speed of 45 km/h, how many meters does it travel in one minute? MCQ with Answer and Explanation

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If a car travels at a speed of 45 km/h, how many meters does it travel in one minute?

A. 750 meters

B. 700 meters

C. 800 meters

D. 650 meters

Answer: Option A

Solution (By JKExamLibrary)

Speed = 45 km/h = 45 * (1000 / 60) meters per minute = 45 * 16.666... = 750 meters per minute. Thus, it covers 750 meters in one minute.

This question belongs to: Maths Time Speed and Distance

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Question #1

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A train 120 meters long is traveling at 72 km/h. How long will it take to cross a platform 180 meters long?

A. 13 seconds

B. 15 seconds

C. 17 seconds

D. 19 seconds

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Correct Answer: Option B

Explanation:
Speed of train = 72 * (5/18) = 20 m/s. Total distance = 120 + 180 = 300 meters. Time taken = 300 / 20 = 15 seconds.

This question belongs to: Maths Time Speed and Distance

Question #2

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A person walks from his home to his office at 4.5 km/h and reaches 12 minutes late. If he walks at 6 km/h, he reaches 3 minutes early. Find the distance.

A. 4.0 km

B. 4.5 km

C. 5.0 km

D. 5.5 km

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Correct Answer: Option B

Explanation:
Time difference = 12 - (-3) = 15 minutes = 15/60 = 0.25 hours. Let distance be d. d / 4.5 - d / 6 = 0.25 => (4d - 3d) / 18 = 0.25 => d / 18 = 0.25 => d = 4.5 km.

This question belongs to: Maths Time Speed and Distance