A person walking at 4 km/h covers a certain distance. If he runs at 8 km/h, he takes 30 minutes less to cover the same distance. Find the distance. MCQ with Answer and Explanation

Question

A person walking at 4 km/h covers a certain distance. If he runs at 8 km/h, he takes 30 minutes less to cover the same distance. Find the distance.

A. 5.0 km

B. 3.5 km

C. 4.0 km

D. 4.5 km

Answer: Option C

Solution (By JKSSB Mock Tests)

Time difference = 30 minutes = 0.5 hours. Let distance be d. d / 4 - d / 8 = 0.5 => d / 8 = 0.5 => d = 4 km.

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 boy goes to school at a speed of 3 km/h and returns to his village at a speed of 2 km/h. If he takes 5 hours in all, what is the distance between the school and the village?

A. 8 km

B. 5 km

C. 6 km

D. 7 km

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Let distance be d. d/3 + d/2 = 5 => 5d/6 = 5 => d = 6 km.

This question belongs to: Maths Time Speed and Distance

Question #2

Share Report

A train 150 meters long is tracking at a speed of 72 km/h. How long will it take to pass a bridge 250 meters long?

A. 18 seconds

B. 22 seconds

C. 20 seconds

D. 24 seconds

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Total distance = 150 + 250 = 400 meters. Speed = 72 * (5/18) = 20 m/s. Time taken = 400 / 20 = 20 seconds.

This question belongs to: Maths Time Speed and Distance

Question #3

Share Report

A boatman rows 30 km downstream and 18 km upstream, taking 3 hours for each leg of the journey. Find the speed of the boat in still water.

A. 9 km/h

B. 10 km/h

C. 8 km/h

D. 7 km/h

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Downstream speed = 30 / 3 = 10 km/h. Upstream speed = 18 / 3 = 6 km/h. Speed in still water = (10 + 6) / 2 = 8 km/h.

This question belongs to: Maths Time Speed and Distance

Explore All Time Speed and Distance MCQs