What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged?
321 – 371 ÷ 22 + 216 × 6 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 8447.
If '+' and '–' are interchanged and '×' and '÷' are interchanged, then we get;
321 + 371 × 22 – (216 ÷ 6) = ?
321 + (371 × 22) – 36 = ?
(321 + 8162) – 36 = ?
8483 – 36 = ?
8447 = ?