Walking at 3/4 of his usual speed, a man is 20 minutes late to his office. Find his usual time to reach the office. MCQ with Answer and Explanation

Question

Share Report Error

Walking at 3/4 of his usual speed, a man is 20 minutes late to his office. Find his usual time to reach the office.

A. 50 minutes

B. 80 minutes

C. 60 minutes

D. 70 minutes

Answer: Option C

Solution (By JKSSB Mock Tests)

New Speed = 3/4 of usual speed, so New Time = 4/3 of usual time. Change in time = 4/3 * T - T = 1/3 * T = 20 minutes. Usual time T = 60 minutes.

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 car travels at a speed of 54 km/h. What is its speed expressed in meters per second?

A. 18 m/s

B. 12 m/s

C. 15 m/s

D. 10 m/s

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
To convert km/h to m/s, multiply by 5/18. Speed = 54 * (5/18) = 3 * 5 = 15 m/s.

This question belongs to: Maths Time Speed and Distance

Question #2

Share Report

A boat can row 13 km/h in still water and the speed of the current is 3 km/h. Find the time taken to row 48 km downstream.

A. 2.5 hours

B. 3.5 hours

C. 3.0 hours

D. 4.0 hours

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Downstream speed = 13 + 3 = 16 km/h. Time taken = 48 / 16 = 3 hours.

This question belongs to: Maths Time Speed and Distance

Question #3

Share Report

The speed of a train is 20% more than the speed of a car. Both start from point A at the same time and reach point B, 120 km away, at the same time. On the way, however, the train lost about 10 minutes while stopping at the stations. What is the speed of the car?

A. 120 km/h

B. 100 km/h

C. 140 km/h

D. 80 km/h

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Let car speed be c, then train speed is 1.2c. Time difference = 120/c - 120/(1.2c) = 10/60 hour. 120/c * (1 - 1/1.2) = 1/6 => 120/c * (0.2/1.2) = 1/6 => 120/c * (1/6) = 1/6 => c = 120 km/h.

This question belongs to: Maths Time Speed and Distance

Explore All Time Speed and Distance MCQs