Four letter clusters have been given out of which three are alike in some manner and one is different. Select the one that is different.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. DGI.
The logic used here is: 1st letter + 3 = 2nd letter, 2nd letter + 3 = 3rd letter
1: MPT: M + 3 = P, P + 4 = T
2: FIM: F + 3 = I, I + 4 = M
3: GJN: G + 3 = J, J + 4 = N
4: DGI: D + 3 = G, G + 4 = K: This does not follow the logic.