You have $$$$750,000$ in an IRA$($Individual Retirement$$ Account$)$ at the time you retire. You have the option of investing this money in two$$ funds: Fund A pays $1\mathrm{.}6\%$ annually and Fund B pays $6\mathrm{.}6\%$ annually. How should you divide your money between Fund A and Fund B to produce an annual interest income of $$$$40,000$