What will come in the place of the question mark (?) in the following equation, if '+' and '-' are interchanged and '×' and '÷' are interchanged?
162 × 9 - 452 + 7 ÷ 9 = ?
1
507
2
407
3
607
4
707
What will come in the place of the question mark (?) in the following equation, if '+' and '-' are interchanged and '×' and '÷' are interchanged?
162 × 9 - 452 + 7 ÷ 9 = ?