If A denotes 'addition', B denotes 'multiplication', C denotes 'subtraction', and D denotes 'division', then what will be the value of the following equation?
27 D 3 C 18 A 3 B 4 = ?

Correct option is A

​$$\text{Given:} \\A \rightarrow +, \quad B \rightarrow \times, \quad C \rightarrow -, \quad D \rightarrow \div \\[8pt]\text{Expression: } 27 \, D \, 3 \, C \, 18 \, A \, 3 \, B \, 4 \\[8pt]\text{Substitute the operators:} \\27 \div 3 - 18 + 3 \times 4 \\[8pt]\text{Apply BODMAS:} \\= 9 - 18 + 12 \\[6pt]\text{Simplify left to right:} \\= (9 - 18) + 12 = -9 + 12 = \boxed{3}$$​​