Question No : 1
A man can row upstream at 7 kmph and downstream at 10kmph.find man’s rate in still water and the rate of current.
Question No : 2
A man takes 3 hours 45 minutes to row a boat 15 km downstream of a river and 2hours30minutes to cover a distance of 5km upstream. find the speed of the river current in km/hr.
Question No : 3
a man can row 18 kmph in still water.it takes him thrice as long to row up as to row down the river. Find the rate of stream.
Question No : 4
A man can row 7 ½ kmph in still water. If in a river running at 1.5 km/hr an hour, it takes him 50 minutes to row to a place and back, how far off is the place?
Question No : 5
In a stream running at 2kmph,a motor boat goes 6km upstream and back again to the starting point in 33 minutes. Find the speed of the motorboat in still water.
Question No : 6
A man can row 40km upstream and 55km downstream in 13 hours also, he can row 30km upstream and 44km downstream in 10 hours. Find the speed of the man in still water and the speed of the current.
Question No : 7
In one hour, a boat goes 11 km along the stream and 5 km against the stream. The speed of the boat in still water(in km/hr) is:
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