Speed of stream is ukm/hr and speed of current is v km/hr then time taken by man to cross the river is equal to cover the distance between two banks of river in u km/hr

Speed of the stream is 3 km/hr and the upstream speed is 7 km/hr. Find the time taken by boat to cover 91 km downstream.

The speed of boat in downstream is 15 km/hr and the speed of the current is 2.5 km/hr. The speed of boat against the current is:

The speed of a car is 60 km/hr. The time taken to cover a distance of 300 km in hours is

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?

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?

If the sum of upstream and downstream speed is 24 km/hr and the speed of the current is 2 km/hr . Then find the time taken to cover 35 km in downward ?

A boat man can row with a speed of 10 km/hr. in still water. The river flow steadily at 5 km/hr. and the width of the river is 2 km. if the boat man cross the river with reference to minimum distance of approach then time elapsed in rowing the boat will be:-