Boat and stream questions for competitive exams

 

1. If the speed of a swimmer in still water is 9 kilometre per hour find the downstream speed of the swimmer when the river is flowing with the speed of 6 kilometre per hour?

2. A boat goes 48 kilometre downstream in 24 hours it it takes 4 hour more to cover the same distance against the stream what is the speed of the boat in still water?

3. a person can row with the stream at 8 kilometre per hour and against the stream at 6 km per hour the speed of the current is is?

4. About melrose 1 km in 5 minut along the stream and 6 km in 1 hour against the stream the speed of the stream is?

5. a person can row downstream 20 km in 2 hours and upstream 4 kilometre in 2 hour what is the speed of the current?

6. A man Rose 12 km in 5 hour against the stream the speed of the current being 4 kilometre per hour what time will be taken by him to row 15 km with the stream?

7. A boat can travel upstream and downstream 28 kilometre taking 5 of each time the velocity of the current is?

8. a man can do at 10 km per hour in still water if he takes to till 5 hour to go to a place 24 km away and return than the speed of the water current is?