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

Total Questions: 50

31. If a man travels at a speed of 15 km/h instead of travelling at a speed of 9 km/h, he travels 30 km more. The actual distance travelled by him is. [RRB NTPC 18/01/2021 (Evening)]

Correct Answer: (a) 45 km
Solution:

32. A map of a city is drawn on a scale of 1 : 50000. The distance between two cities A and B on this map is 12 cm. What will be the actual distance between the two cities? [RRB NTPC 19/01/2021 (Evening)]

Correct Answer: (c) 6 km
Solution:

A map of a city is drawn on a scale of 1 : 50000.
The distance between two cities A and B on this map is 12 cm.
The actual distance between the two cities = 12 × 50000 cm = 600000 cm So, The distance between the two cities is 6 km.

33. If a train runs at an average speed of 42 km/h, then it covers a certain distance in 45 min. What is the speed at which the train must run to reduce the time of the same journey to 35 min? [RRB NTPC 21/01/2021 (Morning) ]

Correct Answer: (b) 54 km/h
Solution:

34. A certain distance (d) is covered by a cyclist at a certain speed. If a jogger covers half the distance in double the time (t), then the ratio of the speed of the cyclist to the speed of the jogger is. [RRB NTPC 21/01/2021 (Evening)]

Correct Answer: (b) 4 : 1
Solution:

35. Sohan and Mohan start from the school with a speed of 3.5 km/hr and 4 km/hr. What time will they take to be 1.5 km apart if they start in the same direction? RRB NTPC 22/01/2021 (Morning) [RRB NTPC 22/01/2021 (Morning)]

Correct Answer: (b) 3 hours
Solution:

36. Ravikant cycles at a speed of 12.5 km/h and walks at a speed of 3 km/h. To cover a distance of 40 km by cycle and walk both, Ravikant took 7 hours. How many of these hours were spent cycling? [RRB NTPC 23/01/2021 (Evening)]

Correct Answer: (c) 2
Solution:

37. A thief steals a bag from the car at 3 pm and drives away at a speed of 50 km/h. The thief is located at 4 p.m. and the owner sets off in his car at a speed of 70 km/h. When will he catch the thief? [RRB NTPC 23/01/2021 (Evening)]

Correct Answer: (a) 6 : 30 pm
Solution:

38. Two trains start at the same time from two stations and proceed towards each other at the speeds of 20 km/h and 25 km/h respectively. When they meet, it is found that one train has travelled 80 km more than the other. Find the distance between the two stations. [RRB NTPC 25/01/2021 (Morning)]

Correct Answer: (a) 720 km
Solution:

39. If a motor car travels the first half of a distance at a speed of 30 km/h and the remaining half distance at a speed of 50 km/h, what will be its average speed? [RRB NTPC 27/01/2021 (Morning)]

Correct Answer: (a) 37.5 km/h
Solution:

40. Two trains start from Delhi and Patna, and travel towards Patna and Delhi, respectively. After passing each other, they take 4 h 48 min and 3 h 20 min to reach Patna and Delhi, respectively. If the train starting from Delhi is moving at a speed of 45 km/h, then find the speed of the other train. [RRB NTPC 27/01/2021 (Evening) ]

Correct Answer: (c) 54 km/h
Solution: