A truck travels 600 meters in 40 seconds. Find its speed in km/h. MCQ with Answer and Explanation

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A truck travels 600 meters in 40 seconds. Find its speed in km/h.

A. 48 km/h

B. 66 km/h

C. 60 km/h

D. 54 km/h

Answer: Option D

Solution (By JKSSB Mock Tests)

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

This question belongs to: Maths Time Speed and Distance

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Question #1

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Walking at 5/7 of his usual speed, a man reaches his destination 24 minutes late. What is his usual time to reach the destination?

A. 75 minutes

B. 50 minutes

C. 80 minutes

D. 60 minutes

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Correct Answer: Option D

Explanation:
New speed = 5/7 of usual speed => New time = 7/5 of usual time. Difference = 2/5 of usual time = 24 minutes. 1/5 of usual time = 12 minutes => Usual time = 60 minutes.

This question belongs to: Maths Time Speed and Distance

Question #2

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A train running at 72 km/h passes an active signal pole in 10 seconds. Find the length of the train.

A. 240 meters

B. 200 meters

C. 180 meters

D. 220 meters

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Correct Answer: Option B

Explanation:
Speed = 72 * (5/18) = 20 m/s. Length of train = Speed * Time = 20 * 10 = 200 meters.

This question belongs to: Maths Time Speed and Distance

Question #3

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A wheel has a radius of 42 cm. How many revolutions must it make to cover a distance of 132 meters?

A. 40 revolutions

B. 50 revolutions

C. 70 revolutions

D. 60 revolutions

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Correct Answer: Option B

Explanation:
Circumference of the wheel = 2 * (22/7) * 42 = 264 cm = 2.64 meters. Total distance = 132 meters. Number of revolutions = 132 / 2.64 = 50 revolutions.

This question belongs to: Maths Time Speed and Distance

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