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Q: What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘÷’ are interchanged and ‘×’ and ‘−’ are interchanged? 19 × 6 ÷ 10 − 2 + 1 = ?
  • A. 28
  • B. 36
  • C. 33
  • D. 48
Correct Answer: Option C - Given, 19 × 6 ÷ 10 – 2 + 1 = ? On interchanging the given signs according to the question, 19 – 6 + 10 × 2 ÷ 1 = ? 19 – 6 + 10 × 2 = ? 19 – 6 + 20 = ? 39 – 6 = ? ∴ ? = 33
C. Given, 19 × 6 ÷ 10 – 2 + 1 = ? On interchanging the given signs according to the question, 19 – 6 + 10 × 2 ÷ 1 = ? 19 – 6 + 10 × 2 = ? 19 – 6 + 20 = ? 39 – 6 = ? ∴ ? = 33

Explanations:

Given, 19 × 6 ÷ 10 – 2 + 1 = ? On interchanging the given signs according to the question, 19 – 6 + 10 × 2 ÷ 1 = ? 19 – 6 + 10 × 2 = ? 19 – 6 + 20 = ? 39 – 6 = ? ∴ ? = 33