Which two signs should be interchanged to make the given equation correct?
$$211\times 14+627÷33-17=520$$

Let's test the options to find which interchange balances the equation.Test Option D ($\times$ and -):Replace $\times$ with - and - with $\times$:
$$211-14+627÷33\times 17$$
According to BODMAS rule:First, perform division:
$$627÷33=19$$
Next, perform multiplication:
$$19\times 17=323$$
Now, substitute back into the equation:
$$211-14+323$$
$$=197+323=520$$
This perfectly matches the RHS ($520$). Thus, Option D is correct.