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Q: If '+' and '–' are interchanged and '×' and ‘÷’ are interchanged, then what will come in place of question mark (?) in the following equation? 161 ÷ 4 + 75 × 5 – 4 = ?
  • A. 633
  • B. 643
  • C. 543
  • D. 533
Correct Answer: Option A - 161 ÷ 4 + 75 × 5 – 4 = ? By replacing '+' with '–' and '×' with '÷', 161 × 4 – 75 ÷ 5 + 4 = ? 161 × 4 – 15 + 4 = ? 644 – 15 + 4 = ? 648 – 15 = ? 633 = ?
A. 161 ÷ 4 + 75 × 5 – 4 = ? By replacing '+' with '–' and '×' with '÷', 161 × 4 – 75 ÷ 5 + 4 = ? 161 × 4 – 15 + 4 = ? 644 – 15 + 4 = ? 648 – 15 = ? 633 = ?

Explanations:

161 ÷ 4 + 75 × 5 – 4 = ? By replacing '+' with '–' and '×' with '÷', 161 × 4 – 75 ÷ 5 + 4 = ? 161 × 4 – 15 + 4 = ? 644 – 15 + 4 = ? 648 – 15 = ? 633 = ?