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| rev | Admin | (Created page with "'''Solution: A''' <math display="block"> \begin{aligned} & \mathrm{OB}_0=24,000 \\ & \mathrm{i}=.16 \end{aligned} </math> j on sinking fund: .11 first 12 years then .08 for last 18 years Original payments would be: <math display="block"> \begin{aligned} & \mathrm{Ks}_{\overline{30}|0.11}=24,000 \\ & \mathrm{~K}=120.59 \end{aligned} </math> At the end of 12 years: <math display="block"> 120.50 \mathrm{~s}_{\overline{12}|0.11}=2,738.98 </math> With the new rat...") | Nov 22'23 at 9:29 | +1,068 |