Question

What will come in the place of the question mark(?) in the following equation, if '÷' and 'x' are interchanged ? 40 - 8÷1 + 72 × 8 = ?

• A. 40
• B. 38
• C. 41
• D. 39

Answer 1

Answer:

C. 41

We’re told to interchange ‘÷’ and ‘×’.

Step 1: Rewrite the expression

Original:

$40 - 8 ÷ 1 + 72 × 8$

After interchange:
$40 - 8 × 1 + 72 ÷ 8$

Apply BODMAS

1. Multiplication:
   $8 × 1 = 8$
   

2. Division:
   $72 ÷ 8 = 9$
   

Now substitute:
$40 - 8 + 9$
Solve left to right

$40 - 8 = 32$
$32 + 9 = 41$

Final Answer: 41