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Find the missing letter in the series: A, D, I, P, ?
Y
X
W
Z
Y
Convert letters to their numerical positions (A=1, D=4, I=9, P=16) to reveal the sequence of perfect squares.
Convert letters to their numerical positions (A=1, D=4, I=9, P=16) to reveal the sequence of perfect squares.
Numerical Mapping
Convert each letter to its position in the English alphabet: A is 1, D is 4, I is 9, and P is 16.
Pattern Analysis
The series follows the sequence of squares of natural numbers: 1 squared = 1 (A), 2 squared = 4 (D), 3 squared = 9 (I), 4 squared = 16 (P).
Finding the Next Term
Following the pattern, the next square is 5 squared, which equals 25. The 25th letter in the English alphabet is Y.
B: 24 (X) does not follow the square number sequence. C: 23 (W) does not follow the square number sequence. D: 26 (Z) does not follow the square number sequence.
A is correct because the series follows the sequence of square numbers (1, 4, 9, 16, 25), where 25 corresponds to the letter Y.
Whenever you see an alphabet series, immediately write down their positions A=1 to Z=26; patterns like squares, cubes, or prime numbers are easier to spot with numbers.
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