প্রশ্ন সংশোধন করুন
প্রশ্ন:
The time taken by a man to travel 36 miles downstream is 90 min less than to go the same distance upstream . The speed of the man in still water is 10 mph. Find the speed of the stream?
The time taken by a man to travel 36 miles downstream is 90 min less than to go the same distance upstream . The speed of the man in still water is 10 mph. Find the speed of the stream?