A train 160 meters long passes a signal pole in 8 seconds. Find the time it takes to completely cross a platform 320 meters long. MCQ with Answer and Explanation

Question

A train 160 meters long passes a signal pole in 8 seconds. Find the time it takes to completely cross a platform 320 meters long.

A. 28 seconds

B. 26 seconds

C. 24 seconds

D. 22 seconds

Answer: Option C

Solution (By JKSSB Mock Tests)

Speed of train = 160 / 8 = 20 m/s. Total distance to pass platform = 160 + 320 = 480 meters. Time required = 480 / 20 = 24 seconds.

This question belongs to: Maths Time Speed and Distance

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Question #1

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A sprinter tracks a 400-meter oval dash stretch in 44 seconds. Find his approximate pace in km/h.

A. 32.7 km/h

B. 34.2 km/h

C. 36.0 km/h

D. 30.5 km/h

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Correct Answer: Option A

Explanation:
Speed = 400 / 44 m/s = 100 / 11 m/s. In km/h = (100 / 11) * (18/5) = 360 / 11 = 32.72 km/h.

This question belongs to: Maths Time Speed and Distance

Question #2

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A hound pursues a fox that is initially 150 meters ahead. The fox flies at 30 km/h and the hound targets at 36 km/h. Find the total distance the fox runs before capture.

A. 850 meters

B. 700 meters

C. 800 meters

D. 750 meters

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Correct Answer: Option D

Explanation:
Relative speed = 36 - 30 = 6 km/h = 5/3 m/s. Time required for capture = 150 / (5/3) = 90 seconds. Distance run by fox = Speed * Time = [30 * (5/18)] * 90 = (25/3) * 90 = 750 meters.

This question belongs to: Maths Time Speed and Distance