SSC JE Mechanical Engineering 25 Sep 2019 Shift 1 Paper

Interchanging numbers and using BODMAS rule,
27 and 15
→ 25 × 4 + 15 ÷ 3 – 27 = 78
25 × 4 + 5 – 27 = 78
100 + 5 – 27 = 78
105 – 27 = 78
78 = 78
Hence, option 4 is the correct answer.