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Question

Find the next term in the given letter series: AAGHGHGH, GAAHGHGH, GHAAHGHG, GHGHAAHG, GHGHGAAH, ____

This question was previously asked in
SSC Stenographer 2025 Question Paper (06-Aug-2025) Shift 2
The correct answer is
GHGHGHAA

Letter Series Pattern Analysis: AAGHGHGH Sequence

The question presents a sequence of letter strings and asks for the next term in the series. The series is: AAGHGHGH, GAAHGHGH, GHAAHGHG, GHGHAAHG, GHGHGAAH, ____.

To find the next term, we need to identify the pattern governing the transformation from one term to the next. Let's analyze the structure and components of each term.

Analyzing the Structure of the Series

Each term in the series has a length of 8 characters and consists of two 'A's and six characters, which are combinations of 'G' and 'H'. Let's observe the position of the adjacent 'AA' block and the characters surrounding it:

  • Term 1: AAGHGHGH (AA at positions 1, 2. Prefix: "", Suffix: GHGHGH)
  • Term 2: GAAHGHGH (AA at positions 2, 3. Prefix: "G", Suffix: HGHGH)
  • Term 3: GHAAHGHG (AA at positions 3, 4. Prefix: "GH", Suffix: HGHG)
  • Term 4: GHGHAAHG (AA at positions 5, 6. Prefix: "GHGH", Suffix: "HG")
  • Term 5: GHGHGAAH (AA at positions 7, 8. Prefix: "GHGHG", Suffix: "H")

Identifying the Progression Pattern

By analyzing the terms, we can observe a clear pattern related to the prefix before the 'AA' block and the sequence of characters involved.

The characters involved, excluding the 'AA' block, seem to follow the sequence "GHGHGH". Let's see how the terms are constructed:

  • Term 1: Starts with "AA" followed by the full sequence "GHGHGH".
  • Term 2: The first character "G" from "GHGHGH" moves to the beginning, followed by "AA", and the rest of the sequence "HGHGH". Prefix="G".
  • Term 3: The prefix grows to "GH", followed by "AA", and the remaining sequence "HGHG". Prefix="GH".
  • Term 4: The prefix grows to "GHGH", followed by "AA", and the remaining sequence "HG". Prefix="GHGH".
  • Term 5: The prefix grows to "GHGHG", followed by "AA", and the remaining sequence "H". Prefix="GHGHG".

Following this pattern, the prefix should grow by taking the next character from the base sequence "GHGHGH".

Constructing the Next Term

For the next term:

  • The prefix should grow to include the entire sequence "GHGHGH".
  • The "AA" block follows the prefix.
  • There are no remaining characters for the suffix.

Therefore, the next term is constructed as: Prefix ("GHGHGH") + "AA" + Suffix ("").

This results in the string: GHGHGHAA.

Table Summary of the Pattern

The following table summarizes the structure:

Term Prefix AA Block Suffix Resulting String
1 "" AA GHGHGH AAGHGHGH
2 G AA HGHGH GAAHGHGH
3 GH AA HGHG GHAAHGHG
4 GHGH AA HG GHGHAAHG
5 GHGHG AA H GHGHGAAH
Next GHGHGH AA "" GHGHGHAA

Conclusion

Based on the consistent pattern of the growing prefix derived from "GHGHGH" followed by the "AA" block, the next term in the series is GHGHGHAA.

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