Time Speed and Distance (Railway Maths) (Part – IV)

Total Questions: 50

11. If 1 cm on a map represents 9 km of actual distance , then how many km of actual distance will 2 cm on the same map represent? [RRB NTPC 10/02/2021 (Morning) ]

Correct Answer: (b) 18
Solution:

1 cm = 9 km
2 cm = 9 × 2 = 18 km

12. Walking at 5/6 of her usual speed Anita took 2 minutes more than usual to reach the bus terminus. How long does Anita take to reach the terminus on days that she isn’t late? [RRB NTPC 10/02/2021 (Morning) ]

Correct Answer: (b) 10 minutes
Solution:

13. A man travelled from a village to a post-office at a speed of 25 km/h and walked back at a speed of 4 km/h. If the whole journey took 5 hours 48 minutes, then the distance of the post-office from the village is: [RRB NTPC 10/02/2021 (Evening) ]

Correct Answer: (b) 20 km
Solution:

14. An aeroplane flies along the sides of an equilateral triangle at the speed of 300 km/h, 200 km/h and 240 km/h, respectively. The average speed of the plane while flying around the triangle is…. [RRB NTPC 11/02/2021 (Morning) ]

Correct Answer: (b) 240 km/h
Solution:

15. A train is travelling at the rate of 45 km/h. How many seconds will it take to cover a distance of 4/5 km? [RRB NTPC 11/02/2021 (Evening)]

Correct Answer: (a) 64 seconds
Solution:

16. A and B walk around a circular path of 10 km in circumference, starting together from the same point in the same direction. If their speeds are 3 km/h and 2 km/h respectively, after how many hours will they be again at the starting point? [RRB NTPC 15/02/2021 (Morning)]

Correct Answer: (a) 10 h
Solution:

17. Two trains of length 200 m and 400 m run on parallel lines. When they run in the same direction, it takes 30 seconds for the train with the higher speed to overtake the other train, and when they travel in the opposite directions, it takes them 6 seconds to cross each other. What are the speeds (in km/h) of the two trains? [RRB NTPC 15/02/2021 (Morning)]

Correct Answer: (a) 216 and 144
Solution:

18. The ratio between the speeds of two trains is 7 : 5. If the second train runs 400 km in 4 h, then the speed of the first train is: [RRB NTPC 16/02/2021 (Evening)]

Correct Answer: (a) 140 km/h
Solution:

19. The speed of a bullet train is 35% more than that of an electric train. If the electric train takes 3 h 45 min for a fixed distance, what will be the time taken by the bullet train to cover the same distance? [RRB NTPC 16/02/2021 (Evening) ]

Correct Answer: (a)
Solution:

20. An express train traveled at an average speed of 100 km/h, stopping for 3 min after every 75 km. How much time did it take the express train to travel 600 km? [RRB NTPC 17/02/2021 (Morning) ]

Correct Answer: (d) 381 min
Solution: