Correct Answer - Option 3 : 50
To pattern followed here to form the code of a word is:
Code = (number of letters in the word)² × 2
there are 3 letters in BUN,
BUN = (3)² × 2
= 9 × 2 = 18
4 letter in MICE
MICE = (4)2 × 2
= 16 × 2 = 32
Similarly, there are 5 letters in DEMON,
DEMON = (5)² × 2
DEMON = 25 × 2
DEMON = 50
Hence, "50" is the code for DEMON.