Question
A boat goes 12 km an hour in still water, but takes thrice time as much time in going the same distance against the current. The speed of the current (in km/hour) is :
More Boats and streams Questions
- The stream flows at 2 km/h. A boat takes 1 hour more to cover 36 km upstream than it takes to go 40 km downstream. What is the distance the boat can cover ...
- A man goes downstream with a boat to some destination and returns upstream to his original place in 5 hours. If the speed of the boat in still water and th...
- The speed of a boat in still water is 6 km/hr more than that of the current. The time taken by the boat to cover 825 km downstream is 16.5 hours. Find the ...
- When travelling downstream, a boat takes 5 hours to travel 300 km. If the speed of the stream is (2/5)th of downstream speed of the boat, then find the tim...
- A man can row 5 km/hr in still water. If the speed of the current is 2 km/hr, it takes 4 hours more in upstream than in the downstream for the same distanc...
- A boat moving upstream takes 8 hours 48 minutes to cover a distance while it takes 4 hours to return to the starting point, downstream. What is the ratio o...
- A ship requires 9 hours to travel a distance of 216 km downstream and 210 km upstream. If the ratio of the ship's speed in calm waters to the speed of the ...
- Boat ‘A’ can cover 120 km in still water in 12 hours. In still water, if the ratio of the speed of boat ‘A’ to that of ‘B’ is 5:4 and the speed of stream i...
- A man rows upstream 18 km and downstream 30 km taking 6 hours each. Find the man’s speed in still water.
- A boat takes 12 hours to cover 96 km while travelling in upstream. If the speed of the stream is 4 km/h, then find the time taken by the boat to cover the ...
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
