Three of the following four letter-clusters are alike in a certain way and one is different. Pick the odd one out.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. GUK
1. CXG = C ⇔ X (opposite pairs), C + 4 = G
2. IRM = I ⇔ R, I + 4 = M
3. BYF =B ⇔ Y, B + 4 = F
4. GUK = G ⇔ T, not U, G + 4 = K (this is odd)