What will come in the place of '?' in the following equation, if '+' and '÷' are interchanged and '×' and '-' are interchanged?
21 + 3 - 7 ÷ 11 × 4 = ?
1
48
2
51
3
56
4
63
What will come in the place of '?' in the following equation, if '+' and '÷' are interchanged and '×' and '-' are interchanged?
21 + 3 - 7 ÷ 11 × 4 = ?