Boat and Stream

Total Questions: 50

41. A boat covers a certain distance downstream in 2 hours, while it returns in 2½ hours. If the speed of the stream is 3 km/h, then what is the speed of the boat in still water? [Graduate Level 24/06/2024 (Shift-3)]

Correct Answer: (c) 27 km/h
Solution:

42. A motorboat, whose speed is 15 km/h in still water goes 20 km downstream and comes back in a total of 4 hours. The speed of the stream (in km/h) is: [Graduate Level 26/06/2024 (Shift-4)]

Correct Answer: (d) 5√3
Solution:

43. A boat is moving 3 km against the current of the stream in 1 hour and moves 1 km in the direction of the current in 12 minutes. How long will it take the boat to go 6 km in stationary water? [SSC CHSL Tier II 10/01/2024]

Correct Answer: (c) 1 hour and 30 minutes
Solution:

44. The speed of a boat in still water is 20 km/h, while the river is flowing at a speed of 8 km/h and the time taken to cover a certain distance upstream is 6 h more than the time taken to cover the same distance downstream. Find the distance. [SSC CPO 03/10/2023 (3rd Shift)]

Correct Answer: (a) 126 km
Solution:

45. The speed of a boat in standing water is 6 km/h and the speed of the stream is 2.5 km/h. A man rows to a place at a distance of 59.5 kilometers and comes back to the starting point. The total time taken by him is: [SSC CPO 04/10/2023 (1st Shift)]

Correct Answer: (d) 24 hours
Solution:

46. The upstream speed of a boat is 8 km/h and the downstream speed is 15 km/h. What is the speed of the boat in still water and the speed of the stream (in km/h), respectively? [SSC CPO 04/10/2023 (2nd Shift)]

Correct Answer: (a) 11.5 and 3.5
Solution:

47. A sailor rows a boat 36 km downstream and 24 km upstream in 6 hours. When it rows 24 km downstream and 36 km upstream the sailor takes 6 and half hours. Then the speed of the current is: [SSC MTS 01/09/2023 (3rd Shift)]

Correct Answer: (d) 2 km/h
Solution:

Let the speed of the boat in
still water is x km/h and the speed of the

48. A boatman goes 6 km against the current of the stream in 2 hours and goes 1.5 km along the current in 7.5 minutes. How long will (in hours) it take to go 30 km in still water? [SSC MTS 04/09/2023 (3rd Shift)]

Correct Answer: (d) 4.0
Solution:

49. A motorboat can row 12 km/h in still water. If the speed of the current is 2 km h. it takes 1.5 hours more in covering some distance upstream than it does downstream for covering the same distance. The one-side distance is: [SSC MTS 08/09/2023 (3rd Shift)]

Correct Answer: (a) 52.5 km
Solution:

50. The time taken by a boat to cover a distance of x km upstream is double the time taken by the boat to cover the same distance downstream. The sum of the speeds of the boat and the stream is 90 km/h. The speed of the stream is________km/h. [SSC MTS 12/09/2023 (3rd Shift)]

Correct Answer: (a) 22.5
Solution: