Bank Math Master১টি পরীক্ষায় এসেছেপ্রশ্ন ১How much time will it take for an amount of Tk. 900 to yield Tk. 81 as interest at 9% per annum of simple interest?ক2 yearsখ1.5 yearsগ1 yearsঘ3 yearsউত্তর দেখুন