Which two signs should be interchanged to make the given equation correct?

335 × 5 ÷ 7 + 65 − 213 = 321

Logic: interchange mathematical operators and solve as per BODMAS rule.

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

335 × 5 ÷ 7 + 65 − 213 = 321

After interchanging,

335 × 5 ÷ 7 = 65 − 213 + 321

Here, 5 is perfectly not divisible by 7.

So, its not correct option.

335 × 5 ÷ 7 + 65 − 213 = 321

After interchanging,

335 ÷ 5 × 7 + 65 − 213 = 321

67 × 7 + 65 − 213 = 321

469 + 65 − 213 = 321

335 × 5 ÷ 7 + 65 − 213 = 321

After interchanging,

335 × 5 - 7 + 65 ÷ 213 = 321

Here, 65 is perfectly not divisible by 213.

So, its not correct option.

335 × 5 ÷ 7 + 65 − 213 = 321

After interchanging,

335 × 5 ÷ 7 - 65 + 213 = 321

Here, 5 is perfectly not divisible by 7.

So, its not correct option.