Q: A boatman can row 4 km against the stream in 24 minutes and return in 20 minutes. Find the speed of boatman in still water.
A: 11 km/hr
Q: A man can row at 4 kmph in still water. If the velocity of the current is 1 kmph and it takes him 8 hours to row to a place and come back, then how far is that place?
A: 15 km
Q: How long will it take to row 20 km upstream if one can row 10 km in 10 minutes in still water and the same distance in 8 minutes with the stream?
A: 26.67 min
Q: The speed of a boat in still water in 12 km/hr and the rate of current is 4 km/hr. The distance travelled downstream in 12 minutes is
A: 3.2 km
Q: A boat moves downstream at 1 km in 5 minutes and upstream at 1 km in 12 minutes. What is the speed of the current?
A: 3.5 km/h
Q: A boat goes 12 km upstream in 48 minutes. The speed of stream is 2 km/hr. The speed of boat in still water is
A: 17 km/hr
Q: Mr.Ramesh’s speed with the current is 20 kmph and the speed of the current is 5 kmph. Ramesh’s speed against the current is
A: 10 kmph
Q: A boat goes 50 km downstream in 10 hours and a distance of 40 km upstream in 10 hours. The speed of the boat in still water is
A: 4.5 Kmph
Q: A boat covers 800 meters in 600 seconds against the stream and returns downstream in 5 minutes. What is the speed of the boat in still water?
A: 2 m/sec
Q: A man swims 12 km downstream and 10 km upstream. If he takes 2 hours each time, what is the speed of the stream?
A: 0.5 Km/hr
Q: A boat takes 4hours for travelling downstream from point P to point Q and coming back to point P upstream. If the velocity of the stream is 2kmph and the speed of the boat in still water is 4kmph, what is the distance between P and Q?
A: 6 Km
Q: A man rows 750m in 775 seconds against the stream and returns in 7 1/2 minutes. What is rowing speed in still water ?
A: 4.7km/hr
Q: The speed of the boat is 23 km/hr and the speed of the stream is 7 km/hr. What is the difference between upstream time and downstream time to cover a distance of 1200 km?
A: 35 hrs
Q: A boat goes 6 km in an hour in still water but takes thrice as much time in going the same distance against the current. The speed of the current (in km/hour) is:
A: 4 km/hr
Q: A man can row upstream at 10 km/hr and downstream at 16 km/hr. Find the man’s rate in still water and the rate of current.
A: 13 km/hr, 3 km/hr
Q: Ravi can row 12 kmph in still water when the river is running at 6 kmph it takes him 1 hour to row to a place and to come back. How far is the place?
A: 4.5 km
Q: A man can row 6 km/hr in still water. When the river is running at 2 km/hr, it takes him 1 ½ hr to row to a place and come back. How far is the place?
A: 4 km
Q: A man can row 30 km upstream in 6 hours. If the speed of the man in still water is 6 km/hr, find how much he can row downstream in 10 hours
A: 70 km
Q: A boatman can row 2 km against the stream in 20 minutes and return in 10 minutes. Find the rate of flow of the current.
A: 3 km/h
Q: A boat travels downstream in 6 hrs and upstream in 4 hrs. The speed of the boat in still water is 40 km/hr and the speed of the stream is 20 km/hr. Find the total distance travelled by boat?
A: 440 km