প্রশ্ন সংশোধন করুন
প্রশ্ন:
Mr. X can do a job in 8 days and his son can do it in 12 days. How many days will it take to complete the job if they work togethsr?
Mr. X can do a job in 8 days and his son can do it in 12 days. How many days will it take to complete the job if they work togethsr?