Correct Answer - Option 1 : 360
The logic follows here is;
LOGIC: (First Number + 1)2 - 1 = Second Number
In 13 ∶ 195;
(13 + 1)2 - 1
= 142 + 1
= 196 - 1
= 195
Similarly;
In 18 : ?;
(18 + 1)2 - 1
= 192 - 1
= 361 - 1
= 360
Hence,"360" is the correct answer.