Two commuter trains 140 meters and 110 meters long are tracking in opposite directions at speeds of 40 km/h and 50 km/h respectively. In what time do they clear each other? MCQ with Answer and Explanation
Question
Report Error
Discuss this Question (0)
Practice More Time Speed and Distance Questions
Question #1
Report Error
A wheel makes 2000 revolutions in covering a distance of 44 km. Find the radius of the wheel.
Correct Answer: Option A
Explanation:
Distance covered in 1 revolution = Total Distance / Number of Revolutions = 44000 meters / 2000 = 22 meters. Circumference = 2 * (22/7) * r = 22 => 44r / 7 = 22 => r = 154 / 44 = 3.5 meters.
Distance covered in 1 revolution = Total Distance / Number of Revolutions = 44000 meters / 2000 = 22 meters. Circumference = 2 * (22/7) * r = 22 => 44r / 7 = 22 => r = 154 / 44 = 3.5 meters.
This question belongs to:
Maths
Time Speed and Distance
Question #2
Report Error
A generic bullet train covers a distance between two stations in 2 hours 30 minutes at a speed of 120 km/h. How much time will it take to cover the same distance at a speed of 150 km/h?
Correct Answer: Option A
Explanation:
Distance = 120 * 2.5 = 300 km. Time at 150 km/h = 300 / 150 = 2 hours.
Distance = 120 * 2.5 = 300 km. Time at 150 km/h = 300 / 150 = 2 hours.
This question belongs to:
Maths
Time Speed and Distance
Question #3
Report Error
A man covers 3/5 of his total journey by rail at 40 km/h and the remaining 2/5 by bus at 30 km/h. If the total distance is 150 km, what is the total time taken?
Correct Answer: Option B
Explanation:
Distance by rail = 150 * (3/5) = 90 km. Time by rail = 90 / 40 = 2.25 hours. Distance by bus = 150 - 90 = 60 km. Time by bus = 60 / 30 = 2 hours. Total time = 2.25 + 2 = 4.25 hours.
Distance by rail = 150 * (3/5) = 90 km. Time by rail = 90 / 40 = 2.25 hours. Distance by bus = 150 - 90 = 60 km. Time by bus = 60 / 30 = 2 hours. Total time = 2.25 + 2 = 4.25 hours.
This question belongs to:
Maths
Time Speed and Distance
No comments yet. Be the first to start the discussion!