What will come in the place of the question mark ‘(?)’ in the following equation, if ‘÷’ and‘×’ are interchanged and ‘+’ and ‘−’ are interchanged?

69 − 2 ÷ 7 + 35 × 7 = ?​​​

Given: 69 − 2 ÷ 7 + 35 × 7 = ?

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: 69 + 2 × 7 - 35 ÷ 7 = ?

69 + 2 × 7 - 5 = ?

69 + 14 - 5 = ?

83 - 5 = ?

? = 78

Thus, correct option is (a).