What will come in the place of the question mark (?) in the following equation if '+' and '−' are interchanged and '×' and '÷' are interchanged?
73 − 27 × 9 + 5 ÷ 13 = ?

The correct answer is Option 1 (11).

We are given the following equation:

$73-27\times 9+5÷13=?$

According to the instructions, we need to interchange the operators as follows:

1. Interchange '+' and '−' (replace '-' with '+' and '+' with '-')
2. Interchange '×' and '÷' (replace '×' with '÷' and '÷' with '×')

After substituting these signs, the new equation becomes:

$73+27÷9-5\times 13=?$

Now, we evaluate the expression using the standard BODMAS (Brakets, Orders, Division/Multiplication, Addition/Subtraction) rule:

Step 1: Perform Division

$27÷9=3$

Substitute this back into the expression:

$73+3-5\times 13$

Step 2: Perform Multiplication

$5\times 13=65$

Substitute this back into the expression:

$73+3-65$

Step 3: Perform Addition

$73+3=76$

Now the expression is:

$76-65$

Step 4: Perform Subtraction

$76-65=11$

Thus, the value that replaces the question mark (?) is 11.