Question

What will come in the place of the question mark (?) in the following equation, if '+' and 'x' are interchanged and '-' and '÷' are interchanged? 28-4×12 ÷ 5 + 3=?

• A. 4
• B. 1
• C. 14
• D. 9

Answer 1

Answer:

A. 4

Interchange the operators as given:

• (+) ↔ (×)

• (-) ↔ (÷)

  Rewrite the expression

Original:
$28 - 4 \times 12 \div 5 + 3$

After interchange:
$28 \div 4 + 12 - 5 \times 3$

Apply BODMAS

$28 \div 4 = 7$

$5 \times 3 = 15$

Now:
$7 + 12 - 15 = 19 - 15 = 4$
Final Answer:

4