প্রশ্ন সংশোধন করুন
প্রশ্ন:
A man rows a certain distance along the stream and against the stream in 1 hour and 1.5 hours respectively . If the velocity of the current is 3 km /hr. what is the speed of a man in still water?
A man rows a certain distance along the stream and against the stream in 1 hour and 1.5 hours respectively . If the velocity of the current is 3 km /hr. what is the speed of a man in still water?