Simplify the following.

(225 ÷ 25 – 10) × 5 + 2 – 7 × 3

Correct option is A

Given:​

​(225 ÷ 25 – 10) × 5 + 2 – 7 × 3

Concept Used:

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

Solution:

​(225 ÷ 25 – 10) × 5 + 2 – 7 × 3

= ​(9 – 10) × 5 + 2 – 7 × 3

= – 1 × 5 + 2 – 7 × 3

​= – 5  + 2 – 21

= – 3 – 21 = – 24​