প্রশ্ন সংশোধন করুন
প্রশ্ন:
A is 30% more efficient than B. How much time will they, working together , take to complete a job which a alone could have done in 23 days?
A is 30% more efficient than B. How much time will they, working together , take to complete a job which a alone could have done in 23 days?