Reasoning
Letter and Symbol Series
214 Questions
Letter and symbol series questions evaluate pattern recognition and logical reasoning through alphabetical sequences. Test takers must identify missing letters and decode structural patterns. These are standard components of verbal reasoning in major competitive exams.
Alphabet sequence completionMissing letter patternsSymbol gap fillingLetter analogiesMixed alphanumeric series
Letter and Symbol Series Questions
A
Correct answer
Explanation
The series consists of writing one letter and skipping one and writing two letters in the reverse order and again skipping one and so on. Hence, option (1) is the right answer.
A
Correct answer
Explanation
The group consists of 3 series of letters.
The first series is of (+3); B + 3 = E, E + 3 = H, H + 3 = K, K + 3 = N.
Therefore, the series is B, E, H, K, N.
The second series is of (–4) and the third series is of (+2).
Hence, option (1) is the correct answer.
C
Correct answer
Explanation
The group consists of 3 series starting from D, K and Y. The first series is +2 series, the second series is –1 series and the third series is –2 series. Hence, 3rd option is correct.
C
Correct answer
Explanation
The group consists of 3 letter series starting with C, J and Q. Each letter in the next term has moved one step forward, i.e. + 1. Hence, option (3) is the right answer.
B
Correct answer
Explanation
It’s a + 5 series. 2nd option is right.
A
Correct answer
Explanation
There are two series running concurrently, one starting with the first letter of the alphabet (A) and the second with the last (Z). Thereafter, it is +1 at each step for the series starting with A and -1 for the series starting with Z.
So, the correct answer is option (1).
A
Correct answer
Explanation
The group consists of 3 different series starting with Z, U and A. The first series is – 2, the second series is of vowels starting from the last in english alphabets and the third series is + 2. Hence, option 1 is correct.
B
Correct answer
Explanation
The group consists of 3 different series starting from D, E and B and moving 5 letters forward. Hence, 2nd option is correct.
D
Correct answer
Explanation
The series moves in + 4, + 5, + 6 and so on.
C
Correct answer
Explanation
The group consists of two series starting with B and D, and moving five letters forward.
A
Correct answer
Explanation
The first group consists of three different letters and the second group is H + 9, K + 9, N + 9 and so on.
The last group should be Z + 9; C + 9; F + 9.
A
Correct answer
Explanation
After every 3 letters, one, two and three letters are skipped in each respective pattern.
DEF (G) HIJ (KL) MNO (PQR) STU
Hence, option (1) is the correct answer.
D
Correct answer
Explanation
This series follows the pattern: + 2, + 4, + 2, + 4
So, the next letter to Q will be U. Hence, option (4) is right.
B
Correct answer
Explanation
The series consists of three different series starting with A, B and Z.
In each subsequent term, the first and the second letters each are moved one step forward (+ 1) and the third letter is moved one step backward (- 1). Hence, the answer is EFV.
A
Correct answer
Explanation
The correct answer is "ba" because it forms the word "aback" as in "he was taken aback by the surprise gift from his wife."