প্রশ্ন সংশোধন করুন
প্রশ্ন:
A person travels form P to Q at a speed of 40 kmph and returns by increasing his speed by 50%. What is the average speed for both the trips?
A person travels form P to Q at a speed of 40 kmph and returns by increasing his speed by 50%. What is the average speed for both the trips?