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Q: What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged? 15 ÷ 8 + 12 × 2 – 2 = ?
  • A. 114
  • B. 116
  • C. 112
  • D. 118
Correct Answer: Option B - Given, 15 ÷ 8 + 12 × 2 – 2 = ? As per question, On interchanging the signs - ⇒ 15 × 8 – 12 ÷ 2 + 2 = ? ⇒ 120 – 6 + 2 = ? ⇒ 122 – 6 = ? ⇒ 116 = ? Hence, option (b) is correct.
B. Given, 15 ÷ 8 + 12 × 2 – 2 = ? As per question, On interchanging the signs - ⇒ 15 × 8 – 12 ÷ 2 + 2 = ? ⇒ 120 – 6 + 2 = ? ⇒ 122 – 6 = ? ⇒ 116 = ? Hence, option (b) is correct.

Explanations:

Given, 15 ÷ 8 + 12 × 2 – 2 = ? As per question, On interchanging the signs - ⇒ 15 × 8 – 12 ÷ 2 + 2 = ? ⇒ 120 – 6 + 2 = ? ⇒ 122 – 6 = ? ⇒ 116 = ? Hence, option (b) is correct.