A delivery sedan logs a trip of 240 km at an average speed of 60 km/h. It travels the first 120 km at 40 km/h. Find the speed for the remaining 120 km. MCQ with Answer and Explanation
Question
Report Error
Discuss this Question (0)
Practice More Time Speed and Distance Questions
Question #1
Report Error
A car travels a distance of 420 km at a certain speed. If the speed is increased by 15 km/h, it takes 5 hours for the journey. Find the original speed.
Correct Answer: Option C
Explanation:
New speed = 420 / 5 = 84 km/h. Since new speed is original speed + 15 km/h, the original speed = 84 - 15 = 69 km/h.
New speed = 420 / 5 = 84 km/h. Since new speed is original speed + 15 km/h, the original speed = 84 - 15 = 69 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #2
Report Error
A train 150 meters long completely passes a stone in 15 seconds. Find the speed of the train in km/h.
Correct Answer: Option B
Explanation:
Speed of train = 150 / 15 = 10 m/s. In km/h = 10 * (18/5) = 36 km/h.
Speed of train = 150 / 15 = 10 m/s. In km/h = 10 * (18/5) = 36 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #3
Report Error
A thief is spotted by a policeman from a distance of 250 meters. When the policeman starts the chase, the thief also starts running. Assuming the speed of the thief to be 10 km/h and that of the policeman to be 12 km/h, how far will the thief have run before he is overtaken?
Correct Answer: Option D
Explanation:
Relative speed = 12 - 10 = 2 km/h. Time taken to catch the thief = 0.25 km / 2 km/h = 1/8 hour. Distance run by the thief = Speed * Time = 10 km/h * (1/8) hour = 1.25 km = 1250 meters.
Relative speed = 12 - 10 = 2 km/h. Time taken to catch the thief = 0.25 km / 2 km/h = 1/8 hour. Distance run by the thief = Speed * Time = 10 km/h * (1/8) hour = 1.25 km = 1250 meters.
This question belongs to:
Maths
Time Speed and Distance
No comments yet. Be the first to start the discussion!