Question
The speed of current is 40 km/hr. If the speed of the boat in still water had been 10 km/hr more than the original speed then it would take 5.5 hours to cover 341 km in downstream. Find the original speed of the boat in still water (in km/h).
Solution
Let the speed of the boat in still water be ‘x’ km/hr According to the question, (x + 10 + 40) = 341/5.5 Or, x = 62 – 50 = 12
More Boats and streams Questions
- A man rows a boat a certain distance downstream in 9 hours, while it takes 18 hours to row the same distance upstream. How many hours will it take him to r...
- Speed of a boat in still water is three times the speed of the boat in upstream. If the boat takes 44 minutes to cover 22 km in downstream, then find the s...
- The speed of a boat in still water is 12 times the speed of the stream. If the difference between the upstream and downstream speed of the boats is 20 km/h...
- A launch goes 120 km with the current in 6 hours. For the same trip against the current, it needs 4 hours more. What’s the speed of the boat in still water...
- A boat takes the same amount of time to travel (x – 24) km upstream as it takes to cover (2x – 84) km downstream. If the speed of the boat is 12 km/h and t...
- Two boats A and B start towards each other from two places, 312 km apart. Speed of the boat A and B in still water are 14 km/h and 10 km/h respectively. If...
- If the sum of upstream and downstream speed is 24 km/hr and the speed of the current is 5 km/hr, then find the approximate time taken to cover 36 km downst...
- A boat covers 60 km downstream in 3 hours and 36 km upstream in 3 hours. Speed of the boat in still water is:
- The ratio of the speed of boats ‘A’ and ‘B’ in still water is 8:9, respectively. The speed of the current is 25% of the speed of boat ‘A’ in still water. I...
- Speed of stream 'L' is 3 km/h more than speed of stream 'M'. Sum of upstream speed of a boat in 'L' and its downstream speed in 'M' is 39 km/h. Time taken ...
Relevant for Exams:
