Time, Speed and Distance, Boats and Streams - Question Bank
1. A boat travels 48 km downstream in 4 hours. If the speed of the stream is 3 km/hr, what is the speed of the boat in still water?
2. Two trains of length 150m and 100m are running on parallel tracks with speeds of 60 km/hr and 40 km/hr respectively. In how much time will they cross each other if they are running in opposite directions?
3. A train travelling at 60 km/hr crosses a signal post in 5 seconds. What is the length of the train?
4. A boat moves upstream at 6 km/hr. If the speed of the boat in still water is 10 km/hr, what is the speed of the stream?
5. A train travelling at 72 km/hr crosses a tunnel in 50 seconds. If the length of the train is 150 meters, what is the length of the tunnel?
6. A boat takes 2 hours to travel 20 km downstream. If the speed of the stream is 3 km/hr, what is the speed of the boat in still water?
7. Two trains, A and B, running in opposite directions, pass a man in 7 seconds and 8 seconds respectively. They cross each other in 10 seconds. What is the ratio of their speeds?
8. A person walks a distance of 20 km in 4 hours. What is his speed in km/hr?
9. A boat goes downstream at 12 km/hr. If the speed of the boat in still water is 10 km/hr, what is the speed of the stream?
10. A train travelling at 90 km/hr crosses a pole in 5 seconds. What is the length of the train?
11. A boat travels 36 km upstream in 3 hours. If the speed of the stream is 4 km/hr, what is the speed of the boat in still water?
12. Two trains start from the same point at the same time in opposite directions. Their speeds are 50 km/hr and 70 km/hr. What is the distance between them after 1.5 hours?
13. A boat travels upstream at 8 km/hr and downstream at 12 km/hr. How far can the boat travel upstream in 5 hours?
14. A train passes a man in 8 seconds and a platform 200 meters long in 12 seconds. What is the speed of the train?
15. A boat takes 6 hours to travel 48 km downstream. If the speed of the boat in still water is 10 km/hr, what is the speed of the stream?
16. Two trains of lengths 100m and 120m are running in the same direction at speeds of 70 km/hr and 50 km/hr respectively. In how much time will they cross each other?
17. A boat moves downstream at 16 km/hr. If the speed of the stream is 4 km/hr, what is the speed of the boat in still water?
18. A car travels from point P to Q at 40 km/hr and returns from Q to P at 60 km/hr. If the distance between P and Q is 120 km, what is the total time taken for the round trip?
19. A train travelling at 45 km/hr crosses a bridge in 40 seconds. If the length of the train is 150 meters, what is the length of the bridge?
20. A man can row a boat at 15 km/hr in still water. If the speed of the stream is 5 km/hr, how long will it take him to cover 60 km upstream?
21. Two trains A and B are running in the same direction with speeds 50 km/hr and 30 km/hr. Train A passes a man in 6 seconds. How long will it take for train A to cross train B?
22. A boat takes 5 hours to cover a distance of 40 km downstream. If the speed of the stream is 3 km/hr, what is the speed of the boat in still water?
23. A train travelling at 54 km/hr crosses a signal post in 10 seconds. What is the length of the train?
24. A boat travels 40 km downstream in 4 hours. If the speed of the boat in still water is 12 km/hr, what is the speed of the stream?
25. Two trains are running in opposite directions at speeds of 60 km/hr and 40 km/hr. They cross a man in 4 seconds and 5 seconds respectively. What is the sum of their lengths?
26. A person walks at 5 km/hr and cycles at 10 km/hr. In how much time will he cover a distance of 20 km if he walks for 1 hour and cycles for the remaining time?
27. A boat goes downstream at 18 km/hr. If the speed of the stream is 3 km/hr, what is the speed of the boat in still water?
28. A train takes 10 seconds to pass a telegraph pole and 20 seconds to pass a platform 200 meters long. What is the speed of the train?
29. A boat travels 12 km upstream in 3 hours. If the speed of the stream is 1 km/hr, what is the speed of the boat in still water?
30. Two trains start from the same point at the same time in the same direction. Their speeds are 60 km/hr and 70 km/hr. What is the distance between them after 1 hour?
31. A train passes a platform in 15 seconds and a pole in 5 seconds. If the length of the train is 200 meters, find the speed of the train.
32. A person rows a boat at 10 km/hr in still water. If the speed of the stream is 2 km/hr, what is the time taken to cover 48 km downstream?
33. A train travelling at 72 km/hr crosses a bridge in 30 seconds. If the length of the train is 120 meters, what is the length of the bridge?
34. A boat moves upstream at a speed of 10 km/hr and downstream at a speed of 20 km/hr. How far can the boat travel downstream in 3 hours?
35. Two trains are running in the same direction with speeds of 50 km/hr and 30 km/hr. A man is standing between them. The faster train passes the man in 6 seconds, and the slower train passes the man in 9 seconds. What is the length of the faster train?
36. A boat travels upstream a distance of 30 km in 6 hours. If the speed of the stream is 2 km/hr, what is the speed of the boat in still water?
37. A car travels the first 50 km at 25 km/hr and the next 50 km at 50 km/hr. What is the average speed for the entire journey?
38. A boat can cover a distance of 16 km downstream in 2 hours. If the speed of the stream is 3 km/hr, find the speed of the boat in still water.
39. Two trains, A and B, running in the same direction at speeds of 70 km/hr and 50 km/hr, pass a man in 6 seconds and 9 seconds respectively. In how many seconds will train A cross train B?
40. A boat takes 3 hours to travel 30 km downstream. If the speed of the stream is 4 km/hr, what is the speed of the boat in still water?
41. A train travelling at 60 km/hr crosses a man standing on the platform in 9 seconds. What is the length of the train?
42. A person travels a certain distance at 3 km/hr and returns at 2 km/hr. If the total time taken is 5 hours, what is the distance?
43. A boat moves downstream at 12 km/hr and upstream at 8 km/hr. How long will it take to cover a distance of 40 km downstream?
44. Two trains start at the same time from two stations A and B towards each other. After crossing each other, they take 9 hours and 4 hours respectively to reach their destinations. What is the ratio of their speeds?
45. A train crosses a platform in 20 seconds and a pole in 10 seconds. If the length of the train is 150 meters, what is the length of the platform?
46. A boat travels downstream at 15 km/hr and upstream at 5 km/hr. What is the speed of the stream?
47. A boat can travel upstream at 10 km/hr and downstream at 20 km/hr. What is the speed of the boat in still water?
48. A car travels from city A to city B at a speed of 40 km/hr and returns from city B to city A at a speed of 60 km/hr. What is the average speed for the entire journey?
49. Two trains of length 100m and 150m are running on parallel tracks with speeds of 40 km/hr and 50 km/hr respectively. In how much time will they cross each other if they are running in the same direction?
50. A man walks at a speed of 6 km/hr. How much distance will he cover in 20 minutes?