If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’ and ‘D’ stands for ‘−’, what will come in place of the question mark (?) in the following equation?
25 A 5 B 1 C 4 D 2 = ?

Given:
A = ÷
B = ×
C = +
D = −

​$$\begin{array}{|c|c|} \hline\textbf{Operation preference wise} & \textbf{Symbol} \\\hline\text{Brackets} &[],{}, () \\ \hline \text{Orders, of} & (power), √ (root) , of \\ \hline \text{Division}& ÷ \\ \hline \text{Multiplication} & × \\\hline \text{Addition} & + \\ \hline \text{Subtraction} & -\\\hline\end{array}$$​​
Equation:
25 A 5 B 1 C 4 D 2
which translates to:
25 ÷ 5 × 1 + 4 − 2

= 5 × 1 + 4 − 2

= 5 + 4 − 2

= 9 − 2

= 7

Correct answer is (b) 7.