DIRECTIONS: Choose the odd one out.

Formula used:

(First digit of first number + second digit of the first number) = (First digit of second number + second digit of second number)

Check all the options:

(1) (18, 45)

Put all the values in the formula,

⇒ (1 + 8) = (4 + 5)

⇒ 9 = 9 → true

(2) (23, 14)

Put all the values in the formula,

⇒ (2 + 3) = (1 + 4)

⇒ 5 = 5 → true

(3) (29, 82)

Put all the values in the formula,

⇒ (2 + 9) = (8 + 2)

⇒ 11 = 10 → false

(4) (36, 27)

Put all the values in the formula,

⇒ (3 + 6) = (2 + 7)

⇒ 12 = 12 → true

Here, Option (3) is different as per logic.

Hence, the correct answer is "Option (3)".