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Pension funds pay lifetime annuities to recipients. If a firmremains in business indefinitely, the pension obligation willresemble a perpetuity. Suppose, therefore, that you are managing apension fund with obligations to make perpetual payments of $4.2million per year to beneficiaries. The yield to maturity on allbonds is 20%.a. If the duration of 5-year maturity bonds withcoupon rates of 16% (paid annually) is 3.7 years and the durationof 20-year maturity bonds with coupon rates of 10% (paid annually)is 6.2 years, how much of each of these coupon bonds (in marketvalue) will you want to hold to both fully fund and immunize yourobligation? (Do not round intermediate calculations. Enteryour answers in millions rounded to 1 decimal place.)Holdings5-year bond$ million20- year bond$ millionb. What will be the par value of yourholdings in the 20-year coupon bond? (Enter your answer indollars not in millions. Do not round intermediate calculations.Round your answer to the nearest dollar amount.)Par value $