Boat and Stream

Total Questions: 50

31. The ratio of the speeds of a boat while going upstream and going downstream is 2 : 3 and the sum of these two speeds is 15 km/h. What is the speed of the stream? [SSC CHSL 08/07/2024 (2nd Shift)]

Correct Answer: (b) 1.5 km/h
Solution:

32. A man can row a boat at speed 8 km/h in still water. It takes thrice as long to row upstream as it does to row downstream. Find the speed of the stream (inkm/h). [SSC CHSL 08/07/2024 (4th Shift)]

Correct Answer: (b) 4
Solution:

33. If the speed of a boat in still water is 3 km/h and if its speed upstream is 1 km/h, find the speed of the stream. [SSC CHSL 11/07/2024 (3rd Shift)]

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

34. A man wishes to cover 1 km distance in river water. In still water he takes 12 minutes to cover it, but in the flowing river he takes 13 minutes. The speed of the flowing water of the river is: [SSC CPO 27/06/2024 (1st Shift)]

Correct Answer: (b) 5/13 km/h
Solution:

35. A man's speed in still water is 4 km/h more than the speed of the current. If the man takes a total of 10 h to cover A 45 km downstream and 35 km upstream, then the speed of the man in still water is: [SSC CPO 27/06/2024 (3rd Shift)]

Correct Answer: (a) 20 km/h
Solution:

36. A boat covers 24 km upstream and 36 km, downstream in 10 hours, and 36 km' upstream and 24 km downstream in 12 hours. The speed of the current is: [SSC CPO 28/06/2024 (1st Shift)]

Correct Answer: (c) 25/8 km/h
Solution:

Let the speed of boat be x and speed of stream be y
Upstream speed (U) = x-y
Downstream speed (D) = x+y

37. A boat can travel 16.9 km downstream in 52 min. If the speed of the current is 3 km/h, then how much time (in hours) will the boat take to travel 84 km upstream? [SSC CPO 29/06/2024 (1st Shift)]

Correct Answer: (c) 6.22
Solution:

38. A man rows 48 km and back in 48 hours. He can row 4 km with the stream in the same time as 3 km against the stream. The speed of the stream (in km/h) is: [SSC CPO 29/06/2024 (2nd Shift)]

Correct Answer: (c) 7/24
Solution:

39. A man can row 9 km/h in still water. If the river is running at 4 km/h, it takes 8 hours more in upstream than to go downstream for the same distance. How far is the place? [Matriculation Level 24/06/2024 (Shift-1)]

Correct Answer: (a) 65 km
Solution:

40. The speed of a boat in still water is 6 km/h and the speed of the stream is 1.5 km/h. In going from point A to point B and returning to A, the boatman takes 2 hours 40 min. Find the distance between points A and B. [Higher Secondary 24/06/2024 (Shift-2)]

Correct Answer: (a) 7.5 km
Solution: