In the following series, one letter is missing as shown by the question mark (?). Select the missing letter from the given options.
Y
Solving the Letter Series: E, J, O, T, ?
This question asks us to identify the missing letter in the given series: E, J, O, T, ?.
To solve letter series questions, we often look for a pattern based on the alphabetical positions of the letters or a specific rule applied between consecutive letters.
Analyzing the Pattern in the Letter Series
Let's write down the alphabetical position of each letter in the series:
- E is the 5th letter of the alphabet.
- J is the 10th letter of the alphabet.
- O is the 15th letter of the alphabet.
- T is the 20th letter of the alphabet.
Now, let's examine the difference in the positions between consecutive letters:
- From E (position 5) to J (position 10), the difference is \(10 - 5 = 5\).
- From J (position 10) to O (position 15), the difference is \(15 - 10 = 5\).
- From O (position 15) to T (position 20), the difference is \(20 - 15 = 5\).
The pattern is clear: each subsequent letter's position in the alphabet is 5 more than the position of the previous letter.
Finding the Missing Letter
Following the identified pattern, the missing letter should have an alphabetical position that is 5 more than the position of the last letter, T.
The position of T is 20.
So, the position of the missing letter is \(20 + 5 = 25\).
The 25th letter of the English alphabet is Y.
Conclusion
Based on the pattern where each letter's position increases by 5, the missing letter in the series E, J, O, T, ? is Y.
Revision Table: Letter Series Analysis
| Letter | Alphabetical Position | Difference from Previous Position |
|---|---|---|
| E | 5 | - |
| J | 10 | \(10 - 5 = 5\) |
| O | 15 | \(15 - 10 = 5\) |
| T | 20 | \(20 - 15 = 5\) |
| ? (Y) | 25 | \(25 - 20 = 5\) |
Additional Information on Letter Series Questions
Letter series questions are common in reasoning tests and competitive exams. They require you to identify the underlying rule that governs the sequence of letters. Common patterns include:
- Alphabetical Position Difference: As seen in this question, the difference between the alphabetical positions of consecutive letters follows a pattern (constant difference, increasing difference, prime numbers, etc.).
- Skipping Letters: A fixed number of letters might be skipped between consecutive letters in the series.
- Combination of Patterns: Sometimes, a series might follow more than one rule, or letters might alternate between different patterns.
- Specific Sequences: The series might relate to days of the week, months of the year, or other known sequences.
Solving these requires careful observation and checking various possible patterns.
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