ab, fg, jk, mn, ?
Letter Series Pattern Analysis
The question asks to find the next letter cluster in the series: $ab$, $fg$, $jk$, $mn$, ?
First Letter Progression Analysis
We examine the position of the first letter of each pair in the alphabet and the gap between them:
- 'a' is the 1st letter.
- 'f' is the 6th letter. Gap: $6 - 1 = 5$.
- 'j' is the 10th letter. Gap: $10 - 6 = 4$.
- 'm' is the 13th letter. Gap: $13 - 10 = 3$.
The gap between the first letters follows a decreasing sequence: 5, 4, 3. The next gap should be 2.
Calculating the position of the next first letter: The previous first letter was 'm' (13th position). The next letter's position is $13 + 2 = 15$. The 15th letter is 'o'.
Second Letter Progression Analysis
Similarly, we examine the second letter of each pair:
- 'b' is the 2nd letter.
- 'g' is the 7th letter. Gap: $7 - 2 = 5$.
- 'k' is the 11th letter. Gap: $11 - 7 = 4$.
- 'n' is the 14th letter. Gap: $14 - 11 = 3$.
The gap between the second letters also follows the sequence: 5, 4, 3. The next gap should be 2.
Calculating the position of the next second letter: The previous second letter was 'n' (14th position). The next letter's position is $14 + 2 = 16$. The 16th letter is 'p'.
Series Completion
Combining the calculated next first letter ('o') and second letter ('p'), the resulting letter cluster is $op$.
Thus, the correct letter cluster to replace the question mark is $op$.
Similar Questions
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Important Questions from Letter Based Series
Select the option that represents the letters that when placed from left to right in the blanks below will complete the given letter series.
M N _ O J K M _ Q O J K _ N Q _ J K M N Q O _ K M N
Select the option that represents the letters that when placed from left to right in the blanks below will complete the given letter series.
B _ E N B _ C E N B B C _ N B B C E _ B _ C
Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster and the fourth letter-cluster is related to the third letter-cluster.
MSD: NHW :: OAE : LZV :: NIP : ?
Select the option that represents the letters that when sequentially placed from left to right in the blanks below will complete the letter series.
Y _ Y _ _ Y _ T _ Y _ Y
Select the option that represents the letters that when sequentially placed from left to right in the blanks below will complete the letter series.
Y _ Y _ _ Y _ T _ Y _ Y
