Correct Answer - Option 3 : 8
The logic followed here is,
Multiplication of digits of number and difference of the results i.e.,
I → 5 × 4 = 20 and 5 × 2 = 10
Now difference of both the results 20 – 10 = 10
II → 2 × 8 = 16 and 1 × 2 = 2
Now difference of both the results 16 – 2 = 14
Similarly, III → 2 × 4 = 8 and 1 × 0 = 0
Now difference of both the results 8 – 0 = 8
Therefore, 8 is the correct answer.