Question

What will come in place of the question mark (?) in the following equation if '†' and '-' are interchanged and 'x' and '÷' are interchanged? 12÷3-8+16×4=?

• A. 48
• B. 44
• C. 40
• D. 42

Answer 1

Answer:

C. 40

We are told to interchange:

• '−' and '+'

• '×' and '÷'

  Rewrite the expression after interchanging

Original:
12 ÷ 3 − 8 + 16 × 4

After interchange:
12 × 3 + 8 − 16 ÷ 4

Apply BODMAS

First do × and ÷:

• 12 × 3 = 36

• 16 ÷ 4 = 4

Now expression becomes:
36 + 8 − 4

Solve

• 36 + 8 = 44

• 44 − 4 = 40

  Answer: 40