A train 180 meters long is running at a speed of 90 km/h. How long will it take to pass a post? MCQ with Answer and Explanation

Question

Share Report Error

A train 180 meters long is running at a speed of 90 km/h. How long will it take to pass a post?

A. 8 seconds

B. 9 seconds

C. 6 seconds

D. 7.2 seconds

Answer: Option D

Solution (By JKSSB Mock Tests)

Speed = 90 * (5/18) = 25 m/s. Time to pass a post = 180 / 25 = 7.2 seconds.

This question belongs to: Maths Time Speed and Distance

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Time Speed and Distance Questions

Question #1

Share Report

A person row a distance of 16 km downstream in 2 hours and the same distance upstream in 4 hours. What is the speed of the boat in still water?

A. 5 km/h

B. 6 km/h

C. 7 km/h

D. 8 km/h

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Downstream speed = 16 / 2 = 8 km/h. Upstream speed = 16 / 4 = 4 km/h. Speed in still water = (8 + 4) / 2 = 6 km/h.

This question belongs to: Maths Time Speed and Distance

Question #2

Share Report

A runner tracks a circular field of radius 140 meters. If his speed is 5 m/s, how long does he take to complete a single lap?

A. 192 seconds

B. 176 seconds

C. 160 seconds

D. 180 seconds

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Circumference = 2 * (22/7) * 140 = 880 meters. Time taken = Distance / Speed = 880 / 5 = 176 seconds.

This question belongs to: Maths Time Speed and Distance

Question #3

Share Report

A sound wave covers a distance of 1.36 km in 4 seconds. Find the speed of sound in m/s.

A. 360 m/s

B. 350 m/s

C. 340 m/s

D. 320 m/s

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Distance = 1.36 km = 1360 meters. Speed = Distance / Time = 1360 / 4 = 340 m/s.

This question belongs to: Maths Time Speed and Distance

Explore All Time Speed and Distance MCQs