If ‘+’ and ‘÷’ are interchanged and ‘-’ and ‘×’ are interchanged, then what will come in place of the question mark (?) in the following equation?
15 × 2 - 48 + 4 ÷ 5 = ?

Given: 15 × 2 - 48 + 4 ÷ 5 = ?

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: 15 - 2 × 48 ÷ 4 + 5 = ?

15 - 2 × 12 + 5 = ?

15 - 24 + 5 = ?

20 - 24 = ?

? = -4

Thus, correct option is (b).