Reasoning
Letter and Symbol Series
192 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
D
Correct answer
Explanation
D is represented by B. The place value of D is 4, which is halved and the result is 2, the place value of B.
Similarly, X = 24. Dividing it by 2, we get 12.
It is the place value of L. So, this is the correct answer.
D
Correct answer
Explanation
A = 1 * 2 + 1 = 3, which is the place value of C. Similarly, B = 2 * 3 + 2 = 8, which means H. Similarly, C = 3 * 4 + 3 = 15 = O.
Similarly, D = 4 * 5 + 4 = 24 = X. So, this is the answer.
C
Correct answer
Explanation
The place values of H and B are 8 and 2 are multiplied to get 16, which is the place value of P. Similarly, C and F (place values 3 and 6), when multiplied, give 18. 18 is the place value of R. So, this is the correct answer.
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ABCDE
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ABCDEF
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ABCDEFG
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None of these
B
Correct answer
Explanation
ABC, ABCD, ABCDE, ...
In each term, write the next letter with the letters of the previous terms.
Therefore, ABCDEF is the next term of the given series.
C
Correct answer
Explanation
This series has three interlinked patterns. First number: add the last number to get the next (2+5=7, 7+7=14, 14+9=23, 23+11=34, 34+13=47). Middle letters: go backwards one at a time (Z-Y-X-W-V-U). Last number: consecutive odd numbers (5, 7, 9, 11, 13, 15). This gives 47U15.
D
Correct answer
Explanation
Three patterns operate here. First letters: +1, -2, +3, -4 (J-K-I-L-H-M). Middle numbers: consecutive differences increasing by 1 (2, 4, 7, 11, 16, 22 with differences of 2, 3, 4, 5, 6). Last letters: go backwards by 2 each time (Z-X-V-T-R-P). The missing term is L11T.
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K–12, M–13
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L–12, M–14
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L–12, N–14
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K–12, M–14
C
Correct answer
Explanation
This follows a simple alphabetical and numerical pattern. First letters go forward by 2 (D-F-H-J-L-N). Numbers are consecutive even numbers (4, 6, 8, 10, 12, 14). The missing terms are L-12 and N-14, which match option C.
D
Correct answer
Explanation
Three patterns work together. First number: multiply by increasing integers (2×2=4, 4×3=12, 12×4=48). Middle letters: advance by 3 (A-D-G-J). Last number: add consecutive even numbers (11+2=13, 13+4=17, 17+6=23). The missing term is 48J23.
C
Correct answer
Explanation
Simple patterns govern this series. First letters: forward by 3 (C-F-I-L). Middle numbers: perfect squares (2²=4, 3²=9, 4²=16, 5²=25). Last letters: backward by 3 (X-U-R-O). The missing term is L25O.
D
Correct answer
Explanation
The pattern here: first number increases by consecutive odd numbers (3+3=6, 6+5=11, 11+7=18, 18+9=27). The letter position increases by consecutive numbers (F+1=G, G+2=I, I+3=L, L+4=P). The answer is 27P.
C
Correct answer
Explanation
Three patterns: first letter goes back by 2 (K-I-G-E-C), second letter goes forward by 3 (M-P-S-V-Y), number adds 3 each time (5, 8, 11, 14, 17). The missing term is CY17.
A
Correct answer
Explanation
Letters go backwards by 2 (W-U-S-Q-O) and numbers are descending perfect squares (12²=144, 11²=121, 10²=100, 9²=81, 8²=64). The missing term is U-121.
D
Correct answer
Explanation
Two interlinked patterns: numbers increase by consecutive even numbers (2+2=4, 4+4=8, 8+6=14, 14+8=22) and letters advance by increasing steps (B+1=C, C+2=E, E+3=H, H+4=L). The answer is 22L.
B
Correct answer
Explanation
This alternating series has two patterns: numbers go +7, -3, +7, -3 (2+7=9, 9-3=6, 6+7=13, 13-3=10) while letters simply advance one at a time (A-B-C-D). The missing number is 10.
C
Correct answer
Explanation
The series has three interwoven patterns. The first letters decrease by 3 (N→K→H→E→B). The numbers follow +2, +3, +4, +5 pattern (5→7→10→14→19). The last letters decrease by 2 (V→T→R→P→N). Only H10R satisfies all three patterns.