Four groups of letters are given below, three of them are alike in certain way while one is different, choose the odd one :

Question

Accepted Answer

Option 1, "STUA," is the correct answer because it is the odd one out among the given groups of letters. Here's the detailed explanation:

1. **Option 1: STUA**
   - The sequence of letters in "STUA" does not follow a consistent alphabetical order or pattern. Specifically, the letters do not form a consecutive sequence or a reverse sequence in the English alphabet. Additionally, the presence of the letter 'U' disrupts any potential pattern that might be formed with the other letters.

2. **Option 2: RQPA**
   - The letters in "RQPA" follow a reverse alphabetical order pattern. Starting from 'R', the sequence goes backward in the alphabet: R (18), Q (17), P (16), A (1). This forms a descending order with a consistent step of -1 between R, Q, and P, and then a jump to A.

3. **Option 3: MLKA**
   - Similarly, "MLKA" follows a reverse alphabetical order pattern. The sequence is M (13), L (12), K (11), A (1). Like Option 2, there is a consistent step of -1 between M, L, and K, followed by a jump to A.

4. **Option 4: HGFA**
   - The letters in "HGFA" also follow a reverse alphabetical order pattern. The sequence is H (8), G (7), F (6), A (1). This again shows a consistent step of -1 between H, G, and F, followed by a jump to A.

In summary, Options 2, 3, and 4 all share a common pattern of having letters in reverse alphabetical order with a consistent step of -1 between the first three letters, followed by a jump to 'A'. Option 1, "STUA," does not follow this pattern, making it the odd one out.