A boatman can row 48 km downstream in 4 h. if the speed of the current is 3 km/h, then find in what time will he be able to cover 15 km upstream?

A boatman can row 48 km downstream in 4 hr. If the speed of the current is 5 km/hr, then find in what time will he be able to cover 8 km upstream ?

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 covers 18 km downstream in 3 hours . If speed of current is 33 (1)/(3) % of its downstream speed . In what time will it cover a distance of 50 km upstream ?

A man can row upstream at 15 km/h and downstream at 21 km/h. The speed of water current of the river 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?

A man can row upstream at 15 km/h and down stream at 21 km/h the speed of water current of the river is: