A person walking at 3 km/h covers a certain distance. If he runs at 9 km/h, he takes 40 minutes less to cover the same distance. Find the distance. MCQ with Answer and Explanation

Question

A person walking at 3 km/h covers a certain distance. If he runs at 9 km/h, he takes 40 minutes less to cover the same distance. Find the distance.

A. 4.0 km

B. 2.5 km

C. 3.5 km

D. 3.0 km

Answer: Option D

Solution (By JKSSB Mock Tests)

Time difference = 40 minutes = 40/60 = 2/3 hours. Let distance be d. d / 3 - d / 9 = 2/3 => 2d / 9 = 2/3 => 2d = 6 => d = 3 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 person runs a distance of 1200 meters along a straight road in 4 minutes. What is his speed in km/h?

A. 24 km/h

B. 18 km/h

C. 15 km/h

D. 20 km/h

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Time = 4 minutes = 240 seconds. Speed = 1200 / 240 = 5 m/s. Speed in km/h = 5 * (18/5) = 18 km/h.

This question belongs to: Maths Time Speed and Distance

Question #2

Share Report

A sound wave tracking along a canyon paths at 340 m/s. Find the total distance wrapped by the sound wave in exactly 25 seconds.

A. 7.5 km

B. 8.5 km

C. 9.0 km

D. 9.5 km

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Distance covered = Speed * Time = 340 * 25 = 8500 meters = 8.5 km.

This question belongs to: Maths Time Speed and Distance

Question #3

Share Report

A train traveling at 72 km/h crosses a platform 160 meters long in 18 seconds. Find the length of the train.

A. 180 meters

B. 200 meters

C. 220 meters

D. 240 meters

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Speed = 72 * (5/18) = 20 m/s. Total distance in 18 seconds = 20 * 18 = 360 meters. Train length + Platform length = 360 => Train length + 160 = 360 => Train length = 200 meters.

This question belongs to: Maths Time Speed and Distance

Explore All Time Speed and Distance MCQs