In the following question, four groups of letters are given, out of which three are alike in a certain way while one is different. Choose the odd one.

Let me analyze the pattern in each group of letters by examining their positions in the alphabet:

Option 1: MOON

M = 13, O = 15, O = 15, N = 14

First three letters: 13, 15, 15 (consecutive odd positions: 13, 15)

Option 2: CEGD

C = 3, E = 5, G = 7, D = 4

First three letters: 3, 5, 7 (consecutive odd positions)

Option 3: HJLI

H = 8, J = 10, L = 12, I = 9

First three letters: 8, 10, 12 (consecutive even positions)

Option 4: UVXT

U = 21, V = 22, X = 24, T = 20

First three letters: 21, 22, 24 (NOT consecutive odd or even positions)

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The pattern in options 1, 2, and 3 is that the first three letters occupy either consecutive odd positions or consecutive even positions in the alphabet.

Option 4 breaks this pattern as U(21), V(22), X(24) are neither consecutive odd numbers nor consecutive even numbers (21 is odd, while 22 and 24 are even).

Therefore, the odd one out is Option 4: UVXT.