A mother wants to save $4000 bimonthly in a financial institution, which pays her interest at a rate of 9 % per year compounded bimonthly. After 7 years the mother gives loan to a company that accumulated amount, which she receives from the bank, at an interest rate of 9% compounded quarterly. 

What amount she will have finally when the company returns the amount to her after 3 years? 

How much total interest should she earn in 10 years' time?