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Match the following / Select the correct answer (Question appears to contain numerical options)
1
2
3
4
2
Scan the sequence for triplets: [Perfect Square] тЖТ [Even Digit] тЖТ [Even Digit]. Remember 1, 4, and 9 are the perfect squares available in the series.
Scan the sequence for triplets: [Perfect Square] тЖТ [Even Digit] тЖТ [Even Digit]. Remember 1, 4, and 9 are the perfect squares available in the series.
Define Criteria
We need triplets: [Perfect Square] - [Even Digit] - [Even Digit]. Perfect squares available in single-digit range are 1, 4, and 9. Even digits are 2, 4, 6, 8.
Scan the Series
Looking at the series: 5, 9, 8, 9, 7, 2, 3, 9, 8, 7, 2, 1, 5, 5, 8, 7, 9, 3, 5, 3, 1, 4, 6, 4, 4, 9, 7, 4, 7. Found 1 followed by 4 (even) then 6 (even) тЖТ (1, 4, 6). Found 4 followed by 6 (even) then 4 (even) тЖТ (4, 6, 4).
Count Matches
The triplets identified are (1, 4, 6) and (4, 6, 4). There are no other perfect squares (1, 4, 9) that satisfy the [Even, Even] condition immediately following them in this series.
A: Incorrect, only 2 matches found. C: Incorrect, count is 2. D: Incorrect, count is 2.
B is correct because the series contains exactly two occurrences of the specified triplet pattern: (1, 4, 6) and (4, 6, 4).
When searching for patterns in series, always explicitly list the 'allowed' values for each position (Square={1,4,9}, Even={2,4,6,8}) to avoid scanning errors.
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