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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? 28 ÷ 90 + 6 – 5 × 17 = ?
  • A. 86
  • B. 80
  • C. 84
  • D. 82
Correct Answer: Option A - According to the question, Given expression is 28 ÷ 90 + 6 – 5 × 17 = ? On interchanging mathematical signs - = 28 + 90 ÷ 6 × 5– 17 = 28 + 75 –17 = 86 Hence option (a) is correct
A. According to the question, Given expression is 28 ÷ 90 + 6 – 5 × 17 = ? On interchanging mathematical signs - = 28 + 90 ÷ 6 × 5– 17 = 28 + 75 –17 = 86 Hence option (a) is correct

Explanations:

According to the question, Given expression is 28 ÷ 90 + 6 – 5 × 17 = ? On interchanging mathematical signs - = 28 + 90 ÷ 6 × 5– 17 = 28 + 75 –17 = 86 Hence option (a) is correct