An amount of money is invested in a savings account for two years. It increases by Tk.52.50 in two years, after annual compounding at the rate of 10% per year. What was the amount in taka invested initially?

প্রশ্নঃ An amount of money is invested in a savings account for two years. It increases by Tk.52.50 in two years, after annual compounding at the rate of 10% per year. What was the amount in taka invested initially?