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| rev | Admin | (Created page with "'''Solution: C''' Using the general Macaulay duration formula: <math display = "block"> \frac{\sum R_tv_t t}{\sum R_t v^t} </math> where R is the cashflow: {| class="table" ! Period !!Cashflow !! PV at 8% !! Period ×PV |- |1 ||10 ||9.26 ||9.26 |- |2 || 12 ||10.29 ||20.58 |- |3 ||15 ||11.91 ||35.73 |- |4 ||20 ||14.70 ||58.80 |- |5 ||30 ||20.42 ||102.10 |- |Total ||66.58 ||226.47 |} Macaulay duration = 226.47/66.58 = 3.401472 years {{soacopyright | 2023 }}") | Nov 20'23 at 14:54 | +466 |