A train tracking at 90 km/h clears a static warehouse tunnel in 20 seconds. If the train length is 150 meters, find the tunnel length. MCQ with Answer and Explanation

A train tracking at 90 km/h clears a static warehouse tunnel in 20 seconds. If the train length is 150 meters, find the tunnel length.
A. 320 meters
B. 350 meters
C. 380 meters
D. 400 meters
Answer: Option B
Solution (By JKSSB Mock Tests)
Speed of train = 90 * (5/18) = 25 m/s. Total distance covered in 20 seconds = 25 * 20 = 500 meters. Length of tunnel = 500 - 150 = 350 meters.

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Practice More Time Speed and Distance Questions

Question #1
A train 180 meters long is tracking at a uniform speed of 72 km/h. How many seconds will it take to clear a stationary passenger standing on a platform?
A. 11 seconds
B. 10 seconds
C. 8 seconds
D. 9 seconds

Correct Answer: Option D


Explanation:
Speed of train = 72 * (5/18) = 20 m/s. Time taken to clear the passenger = 180 / 20 = 9 seconds.

This question belongs to: Maths Time Speed and Distance
Question #2
How long will a person take to walk around a square field of side 45 meters if his speed is 9 km/h?
A. 80 seconds
B. 72 seconds
C. 64 seconds
D. 90 seconds

Correct Answer: Option B


Explanation:
Perimeter of the square field = 4 * 45 = 180 meters. Speed = 9 km/h = 9 * (5/18) = 2.5 m/s. Time = Distance / Speed = 180 / 2.5 = 72 seconds.

This question belongs to: Maths Time Speed and Distance
Question #3
A student covers the distance from his house to school at 5 km/h and arrives 8 minutes late. The next day, he walks at 6 km/h and arrives 2 minutes early. Find the distance between his house and the school.
A. 6 km
B. 8 km
C. 5 km
D. 4 km

Correct Answer: Option C


Explanation:
Time difference = 8 - (-2) = 10 minutes = 1/6 hour. Let distance be d. d/5 - d/6 = 1/6 => d/30 = 1/6 => d = 5 km.

This question belongs to: Maths Time Speed and Distance