প্রশ্ন সংশোধন করুন
প্রশ্ন:
How long will it take for an amount of Tk. 450 to yield Tk. 81 as interest at 4.5% per annum of simple interest -
How long will it take for an amount of Tk. 450 to yield Tk. 81 as interest at 4.5% per annum of simple interest -