প্রশ্ন সংশোধন করুন
প্রশ্ন:
tahmid is four times as old as koushik.in x years,tahmid will be three times as old as koushik.how old is koushik in terms of x ?
tahmid is four times as old as koushik.in x years,tahmid will be three times as old as koushik.how old is koushik in terms of x ?