Find the value of 225 - [ 42 - \ 25 - ( 18 - 18 + 13 ) \ ].

Answer: Option B

$$\begin{array}{rl}& \\ & 225-\left[42-\left\{25-\left(18-\overline{18+13}\right)\right\}\right]\\ & \\ & =225-\left[42-\left\{25-\left(18-18-13\right)\right\}\right]\\ & =225-\left[42-\left\{25+13\right\}\right]\\ & =225-\left[42-38\right]\\ & =221\end{array}$$