1) – and ÷Given expression: 14 + 16 × 14 − 7 ÷ 3 = 43After INTERCHANGING the SYMBOLS, we get:L.H.S = 14 + 16 × 14 ÷ 7 – 3= 14 + 32 – 3= 46 – 3= 43 = R.H.S2) × and ÷Given expression: 14 + 16 × 14 − 7 ÷ 3 = 43After interchanging the symbols, we get:L.H.S = 14 + 16 ÷ 14 − 7 × 3= 14 + 1.14 – 21= 15.14 – 21= -5.86 ≠ R.H.S3) + and –Given expression: 14 + 16 × 14 − 7 ÷ 3 = 43After interchanging the symbols, we get:L.H.S = 14 - 16 × 14 + 7 ÷ 3= 14 – 224 + 2.33= 16.33 – 224= - 207.67 ≠ R.H.S4) – and ×Given expression: 14 + 16 × 14 − 7 ÷ 3 = 43After interchanging the symbols, we get:L.H.S = 14 + 16 - 14 × 7 ÷ 3= 14 + 16 – 32.66= 30 – 32.66= -2.66 ≠ R.H.SHence, ‘– and ÷’ is the correct answer.