SSC JE Electrical Engineering 2017 Set 4 Paper

Given,
Condition (1) 91 # 32 = 7
⇒ (9 + 2) – (1 + 3) = 11 – 4 = 7
Condition (2) 83 # 54 = 4
⇒ (8 + 4) – (3 + 5) = 12 – 8 = 4,
Similarly, Condition (3) 62 # 96
⇒ (6 + 6) –(2 + 9) = 12 – 11 = 1.