Question

Your older brother turned 35 today, and he is planning to save $90,000 per year for retirement, with the first deposit to be made one year from today. He will invest in a mutual fund that's expected to provide a return of 7.5% per year. He plans to retire 30 years from today, when he turns 65, and he expects to live for 25 years after retirement, to age 90. Under these assumptions, how much can he spend each year after he retires? His first withdrawal will be made at the end of his first retirement year.

Answer 1

A/c balance after 65 years Px[(1+r)^n-1)=r Here, A Interest rate per annum B Number of years C|Number of payments per per annum A:C Interest rate per period (r) Bxc Number of periods (n) Payment per period (P) 7.5% 30 1 | 7.5% 30 90,000 A/c balance after 65 years 9,305,946.23 90000<((1+7.5%)^30-1):7.5%

Withdaw in each year (P) PVA:([1-(1:(1+r)^n)]=r) Here, A Interest rate per annum B Number of years C Number of compoundings per per annum A:C Interest rate per period (r) BⓇC Number of periods (n) Present value (PVA) 7.5% 25 1 7.5% 25 9,305,946.23 $ Withdaw in each year (P) $ 834,842.69 9305946.23=(1-(1:(1+7.5%)^25)):7.5%)

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