What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘÷’ are interchanged and ‘×’ and ‘-‘ are interchanged?
5 – 63 + 9 ÷ 10 ×6 = ?

Given: 5 – 63 + 9 ÷ 10 ×6

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

 After interchanging we get:  5 × 63 ÷ 9 + 10 – 6
= 5 × 63 ÷ 9 + 10 – 6

= 5 × 7 + 10 – 6

= 35 + 10 – 6

= 45 – 6

Thus, correct option is (a).