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| rev | Admin | (Created page with "'''Solution: B''' <math display = "block"> \begin{aligned} & 2895.28=R v+R(1.01) v^2+R(1.01)^2 v^3+\ldots+R(1.01)^{29} v^{30}+1000 v^{30} \\ & \implies R\left[\frac{1-\left(\frac{1.01}{1.031}\right)^{30}}{0.031-0.01}\right]+1000 v^{30}=2895.28 \\ & \implies R=113.75\end{aligned} </math> {{soacopyright | 2023 }}") | Nov 19'23 at 22:43 | +315 |