A cyclist covers a 3.6 km track in 12 minutes. Find his speed in meters per second. MCQ with Answer and Explanation

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A cyclist covers a 3.6 km track in 12 minutes. Find his speed in meters per second.

A. 4 m/s

B. 5 m/s

C. 8 m/s

D. 6 m/s

Answer: Option B

Solution (By JKSSB Mock Tests)

Distance = 3.6 km = 3600 meters. Time = 12 minutes = 720 seconds. Speed = 3600 / 720 = 5 m/s.

This question belongs to: Maths Time Speed and Distance

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Question #1

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Walking at 7/9 of his usual speed, an accountant is 20 minutes late to his branch. What is his usual time to reach the destination?

A. 90 minutes

B. 70 minutes

C. 60 minutes

D. 80 minutes

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Correct Answer: Option B

Explanation:
New speed = 7/9 of usual speed => New time = 9/7 of usual time. Difference = 2/7 of usual time = 20 minutes. Therefore, 1/7 of usual time = 10 minutes => Usual time = 70 minutes.

This question belongs to: Maths Time Speed and Distance

Question #2

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A train 100 meters long passes a platform 400 meters long in 25 seconds. Find the speed of the train in km/h.

A. 90 km/h

B. 72 km/h

C. 80 km/h

D. 60 km/h

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Correct Answer: Option B

Explanation:
Total distance = 100 + 400 = 500 meters. Speed = 500 / 25 = 20 m/s. In km/h = 20 * (18/5) = 72 km/h.

This question belongs to: Maths Time Speed and Distance

Question #3

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Excluding stoppages, a bus travels at 54 km/h and including stoppages it travels at 45 km/h. How many minutes does the bus stop per hour?

A. 10 minutes

B. 15 minutes

C. 12 minutes

D. 8 minutes

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Correct Answer: Option A

Explanation:
Stoppage time per hour = (54 - 45) / 54 = 9 / 54 = 1/6 hour. In minutes = (1/6) * 60 = 10 minutes.

This question belongs to: Maths Time Speed and Distance

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