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Question Number 187176 by Rupesh123 last updated on 14/Feb/23

Answered by cortano12 last updated on 14/Feb/23

$$\frac{2}{5}=\frac{r+2}{r+9}\Rightarrow 2r+18=5r+10$$$$\Rightarrow 3r=8;r=\frac{8}{3}$$

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