Simplify 20 ÷ 5 of 4 × 8 + 6 ÷ 24 of 3 × 48 - 6 ÷ 18 × 9

Correct option is C

Given:

20 ÷ 5 of 4 × 8 + 6 ÷ 24 of 3 × 48 - 6 ÷ 18 × 9 

Formula Used:

BODMAS

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

Solution:

20 ÷ 5 of 4 × 8 + 6 ÷ 24 of 3 × 48 - 6 ÷ 18 × 9 

= 20 ÷ 20 × 8 + 6 ÷ 72 × 48 - 6 ÷ 18 × 9 

= 1 × 8 + $$\frac{6}{72}$$​ × 48 - $$\frac{6}{18}$$​ × 9 

= 8 + 4 - 3 

= 12 - 3

= 9

Thus, the correct option is (c) 9