A train 150 meters long passes a static observer in 6 seconds. How long will it take to pass a platform 250 meters long? MCQ with Answer and Explanation

Question

A train 150 meters long passes a static observer in 6 seconds. How long will it take to pass a platform 250 meters long?

A. 14 seconds

B. 20 seconds

C. 16 seconds

D. 18 seconds

Answer: Option C

Solution (By JKSSB Mock Tests)

Speed of train = 150 / 6 = 25 m/s. Total distance to pass platform = 150 + 250 = 400 meters. Time taken = 400 / 25 = 16 seconds.

This question belongs to: Maths Time Speed and Distance

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Question #1

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A cyclist covers 1200 meters in 4 minutes flat. Find his speed index in km/h.

A. 15 km/h

B. 18 km/h

C. 20 km/h

D. 22 km/h

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Correct Answer: Option B

Explanation:
Time = 4 minutes = 240 seconds. Speed = 1200 / 240 = 5 m/s. Converting to km/h = 5 * (18/5) = 18 km/h.

This question belongs to: Maths Time Speed and Distance

Question #2

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A train passes a static observer in 8 seconds and a platform 120 meters long in 14 seconds. Find the length of the train.

A. 150 meters

B. 160 meters

C. 200 meters

D. 180 meters

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Correct Answer: Option B

Explanation:
Time to cross the platform alone = 14 - 8 = 6 seconds. Speed of train = 120 / 6 = 20 m/s. Length of train = Speed * Time to pass observer = 20 * 8 = 160 meters.

This question belongs to: Maths Time Speed and Distance

Question #3

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A passenger train 180 meters long is running at 60 km/h. How much time will it take to pass a platform of length 220 meters?

A. 30 seconds

B. 27 seconds

C. 20 seconds

D. 24 seconds

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Correct Answer: Option D

Explanation:
Total distance = 180 + 220 = 400 meters. Speed = 60 * (5/18) = 50/3 m/s. Time = 400 / (50/3) = 400 * 3 / 50 = 24 seconds.

This question belongs to: Maths Time Speed and Distance

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