A man takes 20 minutes to row 12 km upstream which is a third more than the time he takes on his way downstream. What is his speed in still water?

A man rows 24 km upstream in 6 hours and a distance of 35 km downstream in 7 hours. Then the speed of the man in still water is

A man can row downstream at 12 km/h and upstream at 8 km/h. What is the speed of man in still water?

Malla can row 40 km upstream and 55 km downstream in 13 h and 30 km upstream and 44 km downstream in 10 hours. What is the speed of Malla in still water?

A man can row downstream at 12 km/h and upstream at 8 kn/h what is the speed of man in still water?

What will be speed of stream, if speed of boat in still water is 45km/hr? A. The time taken by boat to cover 240 km upstream is 4 hours more than time taken by boat to cover same distance in downstream. B. Boat takes total 15 hours to cover 300 km in downstream and upstream.