A car covers a distance of 120 km at 30 km/h and another 120 km at 50 km/h. Find the total time spent during the journey. MCQ with Answer and Explanation

Question

A car covers a distance of 120 km at 30 km/h and another 120 km at 50 km/h. Find the total time spent during the journey.

A. 6.0 hours

B. 6.8 hours

C. 6.4 hours

D. 7.2 hours

Answer: Option C

Solution (By JKSSB Mock Tests)

Time for first part = 120 / 30 = 4 hours. Time for second part = 120 / 50 = 2.4 hours. Total time taken = 4 + 2.4 = 6.4 hours.

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 boat covers 40 km downstream in 4 hours and the same distance upstream in 8 hours. Find the speed of the stream.

A. 2.0 km/h

B. 3.5 km/h

C. 2.5 km/h

D. 3.0 km/h

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Downstream speed = 40 / 4 = 10 km/h. Upstream speed = 40 / 8 = 5 km/h. Speed of stream = (10 - 5) / 2 = 5 / 2 = 2.5 km/h.

This question belongs to: Maths Time Speed and Distance

Question #2

Share Report

Two locomotive train units of equal layout lengths pass a single track sign pole in 10 seconds and 15 seconds. If each train length tracks at 120 meters, find the time parameter to pass each other completely when running in opposite directions.

A. 10 seconds

B. 12 seconds

C. 14 seconds

D. 16 seconds

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Speed of first train = 120 / 10 = 12 m/s. Speed of second train = 120 / 15 = 8 m/s. Total tracking distance = 120 + 120 = 240 meters. Relative speed in opposite directions = 12 + 8 = 20 m/s. Time required = 240 / 20 = 12 seconds.

This question belongs to: Maths Time Speed and Distance

Question #3

Share Report

A baseline boat hull can row 10 km/h in still water. If the river current tracks a velocity of 2 km/h, find the exact sector distance covered downstream by the boat hull in 30 minutes flat.

A. 8 km

B. 7 km

C. 5 km

D. 6 km

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Downstream speed = 10 + 2 = 12 km/h. Time = 30 minutes = 0.5 hour. Distance covered = Speed * Time = 12 * 0.5 = 6 km.

This question belongs to: Maths Time Speed and Distance

Explore All Time Speed and Distance MCQs