If + means ×, × means −, − means ÷, and ÷ means +, what will be the value of the given expression?

15 − 3 ÷ 25 × 7 + 3​​

Given: 15 − 3 ÷ 25 × 7 + 3

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

 New Expression: 15 ÷ 3 + 25 − 7 × 3

= 5  + 25 − 7 × 3

= 5  + 25 − 21

= 30 − 21

​Thus, correct option is (b).

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