Raju can row at 7 km/hr in still water. If the speed of current is 2 km/hr and it takes him 2 hour to row to a place and come back, how far is the place?
1). 32.1 km
2). 64.2 km
3). 6.42 km
4). 3.21 km
A boat travels upstream from B to A and downstream from A to B in 4 hours. If the speed of the boat in still water is 8 km/hr and the speed of the current is 4 km/hr the distance between A and B is _____ km.
1). 12
2). 16
3). 24
4). 18
A boat covers a distance of 40 km in downstream, then it increases its speed by 2 km/hr and covers a distance of 36 km then again speed is increased by 3 km/hr and covers a distance of 45 km. If the speed of the boat in still water is 8 km/hr and speed of stream is 2 km/hr. Find the average speed of the boat.
The speed of a boat itself is 30 km/h and the rate of flow of the stream is 5 km/h. Moving against the stream the boat went 200 m. What distance will the boat cover during the same time going in the direction of the stream?
A boat sails downstream 50 km in 2 hours and maintains a speed of 10 km/h while travelling upstream. Find the speed of the boat in still water.
1). 17.5 km/h
2). 18 km/h
3). 40 km/h
4). 50 km/h