If ‘+’ means ‘−’, ‘−’ means ‘×’, ‘×’ means ‘÷’, and ‘÷’ means ‘+’, then what will come inplace of the question mark (?) in the following equation?

25 + 7 ÷ 3 − 12 × 4 = ?

Given: 25 + 7 ÷ 3 − 12 × 4 = ?

Given equation is solve by BODMAS rule.

​$$\begin{array}{|c|c|} \hline\textbf{Operation preference wise} & \textbf{Symbol} \\\hline\text{Brackets} &[],{}, () \\ \hline \text{Orders, of} & (power), √ (root) , of \\ \hline \text{Division}& ÷ \\ \hline \text{Multiplication} & × \\ \hline \text{Addition} & + \\ \hline \text{Subtraction} & - \\\hline\end{array}$$

New equation: 25 - 7 + 3 × 12 ÷ 4 = ?

25 - 7 + 3 × 3 = ?

25 - 7 + 9 = ?

34 - 7 = ?

? = 27

Thus, correct option is (a).