The upstream speed of a boat is 9 km/hr which is 300% more than the speed of stream . Find how much distance boat will cover in 5 hours while travelling in downstream .

What is the speed of the stream? I.The ratio of the speed upstream to the seed downstream of a boat is 2:3. II.The distance travelled upstream in 2 hours by the boat is more than the distance travelled by it downstream in 1 hour by 4km.

The downstream speed of a boat is 20 km/hr and the speed of current is 5 km/hr. What is the total time (in hours) taken by the boat to cover 80 km upstream and 100 km downstream?

The downstream speed of a boat is 42 km/hr and the speed of current is 3 km/hr. What is the total time (in hours) taken by the boat to cover 72 km upstream and 84 km downstream?

Downstream speed of boat is 50 km/h and upstream speed of boat is 30 km/h. Find the speed of boat in still water and speed of stream?