Given equation is → 15 * 4 * 27 * 12 * 3 = 83
After replacing the signs from left to right and using the BODMAS rule,
Option 1 → ÷, +, -, ×
15 ÷ 4 + 27 - 12 × 3 = 83
3.75 + 27 - 12 × 3 = 83
3.75 + 27 - 36 = 83
30.75 - 36 = 83
-5.25 ≠83
Option 2 → ×, +, -, ÷ 15 × 4 + 27 - 12 ÷ 3 = 83 15 × 4 + 27 - 4 = 83 60 + 27 - 4 = 83 87 - 4 = 83 83 = 83 Option 3 → ÷, -, +, ×
15 ÷ 4 - 27 + 12 × 3 = 83
3.75 - 27 + 12 × 3 = 83
3.75 - 27 + 36 = 83
39.75 - 27 = 83
12.75 ≠83
Option 4 → ×, -, +, ÷
15 × 4 - 27 + 12 ÷ 3 = 83
15 × 4 - 27 + 4 = 83
60 - 27 + 4 = 83
64 - 27 = 83
37 ≠83
Hence, the correct answer is "Option 2".