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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? 84 + 12 × 9 ÷ 13 – 21 = ?
  • A. 259
  • B. 273
  • C. 271
  • D. 264
Correct Answer: Option C - The given expression is - 84 + 12 × 9 ÷ 13 – 21 = ? According to the question on interchanging the signs - ? = 84 ÷ 12 – 9 + 13 × 21 = 7 – 9 + 273 = 271
C. The given expression is - 84 + 12 × 9 ÷ 13 – 21 = ? According to the question on interchanging the signs - ? = 84 ÷ 12 – 9 + 13 × 21 = 7 – 9 + 273 = 271

Explanations:

The given expression is - 84 + 12 × 9 ÷ 13 – 21 = ? According to the question on interchanging the signs - ? = 84 ÷ 12 – 9 + 13 × 21 = 7 – 9 + 273 = 271