প্রশ্ন সংশোধন করুন
প্রশ্ন:
A boat goes 13 Km upstream (against current) in 39 minutes. THE SPEED OF STREAM (current) is 3 km/hr. what is the speed of the boat in still water?
A boat goes 13 Km upstream (against current) in 39 minutes. THE SPEED OF STREAM (current) is 3 km/hr. what is the speed of the boat in still water?