SSC JE Civil Engineering 29-Oct-2020 Shift 1 Paper

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".