A person travels a distance of 300 km at an average speed of 60 km/h and returns at a speed of 40 km/h. Find the average speed for the round trip. MCQ with Answer and Explanation
Question
Report Error
Discuss this Question (0)
Practice More Time Speed and Distance Questions
Question #1
Report Error
Two stations A and B are 450 km apart. A train leaves station A at 4:00 PM at 60 km/h. Another train leaves station B at 5:00 PM at 70 km/h traveling towards A. At what time will they meet?
Correct Answer: Option C
Explanation:
By 5:00 PM, the first train has traveled for 1 hour and covered 60 km. Distance left between them = 450 - 60 = 390 km. Relative speed = 60 + 70 = 130 km/h. Time to meet after 5:00 PM = 390 / 130 = 3 hours. Meeting time = 5:00 PM + 3 hours = 8:00 PM.
By 5:00 PM, the first train has traveled for 1 hour and covered 60 km. Distance left between them = 450 - 60 = 390 km. Relative speed = 60 + 70 = 130 km/h. Time to meet after 5:00 PM = 390 / 130 = 3 hours. Meeting time = 5:00 PM + 3 hours = 8:00 PM.
This question belongs to:
Maths
Time Speed and Distance
Question #2
Report Error
A sound wave travels at 330 m/s. How long does it take to cover a distance of 6.6 km?
Correct Answer: Option B
Explanation:
Distance = 6.6 km = 6600 meters. Time taken = 6600 / 330 = 20 seconds.
Distance = 6.6 km = 6600 meters. Time taken = 6600 / 330 = 20 seconds.
This question belongs to:
Maths
Time Speed and Distance
Question #3
Report Error
A cargo container vehicle spans 450 meters in exactly 30 seconds. Find its baseline speed index in km/h.
Correct Answer: Option C
Explanation:
Speed = 450 / 30 = 15 m/s. In km/h index = 15 * (18/5) = 54 km/h.
Speed = 450 / 30 = 15 m/s. In km/h index = 15 * (18/5) = 54 km/h.
This question belongs to:
Maths
Time Speed and Distance
No comments yet. Be the first to start the discussion!