A train 130 meters long passing a platform 170 meters long takes 15 seconds. Find the speed of the train in km/h. MCQ with Answer and Explanation

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A train 130 meters long passing a platform 170 meters long takes 15 seconds. Find the speed of the train in km/h.

A. 64 km/h

B. 84 km/h

C. 80 km/h

D. 72 km/h

Answer: Option D

Solution (By JKSSB Mock Tests)

Total distance = 130 + 170 = 300 meters. Speed = 300 / 15 = 20 m/s. In km/h = 20 * (18/5) = 72 km/h.

This question belongs to: Maths Time Speed and Distance

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Question #1

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A sound wave travels at 330 m/s. How long does it take to cover a distance of 6.6 km?

A. 22 seconds

B. 20 seconds

C. 24 seconds

D. 18 seconds

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Correct Answer: Option B

Explanation:
Distance = 6.6 km = 6600 meters. Time taken = 6600 / 330 = 20 seconds.

This question belongs to: Maths Time Speed and Distance

Question #2

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A boat can row 12 km/h in still water. If the river current flows at 3 km/h, find the time taken to row 45 km downstream.

A. 3.5 hours

B. 2.5 hours

C. 4 hours

D. 3 hours

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Correct Answer: Option D

Explanation:
Downstream speed = 12 + 3 = 15 km/h. Time taken = Distance / Downstream speed = 45 / 15 = 3 hours.

This question belongs to: Maths Time Speed and Distance

Question #3

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A cargo container vehicle spans 600 meters in exactly 40 seconds. Find its baseline speed index in km/h.

A. 66 km/h

B. 54 km/h

C. 48 km/h

D. 60 km/h

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Correct Answer: Option B

Explanation:
Speed = 600 / 40 = 15 m/s. In km/h index = 15 * (18/5) = 54 km/h.

This question belongs to: Maths Time Speed and Distance

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