Question

What will come in the place of the question mark (?) in the following equation, if '+' and '-' are interchanged and 'x' and '÷' are interchanged? 2 ÷ 70 x 2 - 30 + 30 = ?

• A. 69
• B. 68
• C. 70
• D. 66

Answer 1

Answer:

C. 70

Interchange the operators:

• (+) ↔ (-)

• (×) ↔ (÷)

So the expression becomes:
2 × 70 ÷ 2 + 30 - 30

Apply BODMAS:

2 × 70 = 140
140 ÷ 2 = 70
70 + 30 - 30 = 70

Final Answer:

70