What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘×’ are interchanged and ‘–’ and ‘÷’ are interchanged?

21 + 32 - 14 × 17 ÷ 11 = ?

This question was previously asked in
RPF Constable 2024 Official Paper (Held On 02 Mar, 2025 Shift 3)
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  1. 64
  2. 34
  3. 54
  4. 44

Answer (Detailed Solution Below)

Option 3 : 54
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Detailed Solution

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BODMAS

Given: 21 + 32 - 14 × 17 ÷ 11 = ?

According to the question, after ‘+’ and ‘×’ are interchanged and ‘–’ and ‘÷’ are interchanged:

21 + 32 - 14 × 17 ÷ 11 = ? ⇒ 21 × 32 ÷ 14 + 17 11 = ?

⇒ 21 × 32 ÷ 14 + 17  11 = ?

⇒ 21 × 2.28 + 17  11 = ?

48 + 17  11 = ?

65  11 = ?

⇒ 54 = ?

Hence, "Option 3" is the correct answer.

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