If 'A' represents 'subtraction','B' reprsents 'multiplicatin', 'C' represents 'division' and 'D' represents 'addition', then what is the value of (3 B 4 D 5 A 6) C 1?

Correct option is C

Given: 

'A' represents 'subtraction', 'B' represents  'multiplication', 'C' represents 'division' and 'D' represents 'addition'

BODMAS Rule:

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

Solution:

​(3 B 4 D 5 A 6) C 1

After replacing the symbols by their meaning, 

(3 × 4 + 5 - 6) ÷ 1

= (12 + 5 - 6) ÷ 1

= (17 - 6) ÷ 1

= 11 ÷ 1

= 11

Hence, option (c) is the correct answer.