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

2×4÷5-25+5=8

Correct option is C

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

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

Check option A,− and ×

Given:

2×4÷5-25+5=8

After interchanging,

2-4÷5×25+5=8

Here, 4 is perfectly not divisible by 5.

So, its not correct option.

Check option B, − and +

Given:

2×4÷5-25+5=8

After interchanging,

2×4÷5+25-5=8

Here, 4 is perfectly not divisible by 5.

So, its not correct option.

Check option C,÷ and +

Given:

2×4÷5-25+5=8

After interchanging,

2×4+5-25÷5=8

8+5-5=8

8=8

So, its correct option.

Check option D,÷ and ×

Given:

2×4÷5-25+5=8

After interchanging,

2÷4×5-25+5=8

Here, 2 is perfectly not divisible by 4.

So, its not correct option.

Thus, option C is correct.