A missile travels at a speed of 1440 km/h. Find the distance covered by the missile in exactly 12 seconds. MCQ with Answer and Explanation

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A missile travels at a speed of 1440 km/h. Find the distance covered by the missile in exactly 12 seconds.

A. 4200 meters

B. 5000 meters

C. 4500 meters

D. 4800 meters

Answer: Option D

Solution (By JKSSB Mock Tests)

Speed in m/s = 1440 * (5/18) = 80 * 5 = 400 m/s. Distance covered in 12 seconds = Speed * Time = 400 * 12 = 4800 meters.

This question belongs to: Maths Time Speed and Distance

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Question #1

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A delivery boy on a scooter covers a distance of 24 km at a speed of 16 km/h. Find the time taken in minutes.

A. 75 minutes

B. 120 minutes

C. 90 minutes

D. 100 minutes

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Correct Answer: Option C

Explanation:
Time taken = Distance / Speed = 24 / 16 = 1.5 hours. Converting to minutes = 1.5 * 60 = 90 minutes.

This question belongs to: Maths Time Speed and Distance

Question #2

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A train 240 meters long passes a pole in 24 seconds. How long will it take to pass a platform 650 meters long?

A. 89 seconds

B. 114 seconds

C. 65 seconds

D. 100 seconds

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Correct Answer: Option A

Explanation:
Speed of train = 240 / 24 = 10 m/s. Total distance to pass platform = 240 + 650 = 890 meters. Time taken = 890 / 10 = 89 seconds.

This question belongs to: Maths Time Speed and Distance

Question #3

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Two standard passenger trains 160 meters and 140 meters long run on parallel tracks in opposite directions at 42 km/h and 30 km/h. Find the time needed to cross each other completely.

A. 13 seconds

B. 15 seconds

C. 19 seconds

D. 17 seconds

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Correct Answer: Option B

Explanation:
Total distance = 160 + 140 = 300 meters. Relative speed = 42 + 30 = 72 km/h = 20 m/s. Time taken = 300 / 20 = 15 seconds.

This question belongs to: Maths Time Speed and Distance

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