What will come in place of ‘?’ in the following equation, if ‘+’ and ‘–‘ are interchanged and ‘×’ and ‘÷’ are interchanged?
292 ÷ 2 − 15 + 164 × 4 = ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 558
292 ÷ 2 − 15 + 164 × 4 = ?
After interchangeing signs,
= 292 × 2 + 15 - (164 ÷ 4)
= 584 + 15 - 41
= 599 - 41
= 558.