In the following pattern each term is a string of six capital X with one lowercase x: XxXXXXX, XXxXXXX, XXXxXXX, XXXXxXX, XXXXXxX, ? Which alphabet should replace the question mark to correctly continue the pattern?

Introduction / Context:
This problem is a visual letter pattern question that uses capital X and a single lowercase x. The series appears as XxXXXXX, XXxXXXX, XXXxXXX, XXXXxXX, XXXXXxX, followed by a missing term. Although only one letter type is used, the key idea is the position of the lowercase x as it moves through the string of characters. Questions like this are common in non verbal or figure based reasoning, translated into letters.

Given Data / Assumptions:

• Terms given: XxXXXXX, XXxXXXX, XXXxXXX, XXXXxXX, XXXXXxX, ? • Each term has six capital X and one lowercase x, for a total length of seven characters. • Options: xXXXXXX, XxXXXXX, XXXXXXx, XXxXXXX. • Assumption: The number of characters remains seven and exactly one lowercase x appears in each term.

Concept / Approach:
We focus on the movement of the single lowercase x from term to term. In many such patterns, a special symbol travels from left to right (or right to left) in a fixed step. By indexing the positions inside each term, we can describe precisely where the lowercase x stands and how it shifts. Once the direction and step size are clear, we can predict the position in the missing term and then select the corresponding option that matches this position.

Step-by-Step Solution:
Step 1: Label positions in each seven character term from 1 to 7 from left to right. Step 2: For the first term XxXXXXX, the lowercase x appears at position 2. Step 3: In the second term XXxXXXX, the lowercase x is at position 3. Step 4: In the third term XXXxXXX, the lowercase x has moved to position 4. Step 5: In the fourth term XXXXxXX, it stands at position 5, and in the fifth term XXXXXxX, it stands at position 6. Step 6: We see that in each successive term, the lowercase x moves one position to the right. Step 7: Therefore, in the sixth term, the lowercase x should be at position 7, at the far right, with all previous characters capital X. Step 8: The resulting string is XXXXXXx.

Verification / Alternative check:
To verify, we can write the positions of lowercase x as a simple numeric series: 2, 3, 4, 5, 6, ?. The obvious continuation is 7, which corresponds to the last position. Among the options, only XXXXXXx has the lowercase x in position 7 and capital X everywhere else. Options like xXXXXXX or XxXXXXX either place the lowercase x at position 1 or return to position 2, which would break the smooth rightward movement observed in the earlier terms.

Why Other Options Are Wrong:
xXXXXXX has the lowercase x at position 1, which reverses the direction and does not continue the forward march to the right. XxXXXXX repeats the first term and therefore does not represent the next step after XXXXXxX. XXxXXXX repeats the second term and again breaks the strictly increasing position pattern.

Common Pitfalls:
Some test takers count the number of X rather than the position of the lowercase x, or they expect the pattern to wrap around to the left without checking whether that behaviour is consistent with earlier terms. It is also easy to miscount the position in seven character strings. Counting carefully and treating each term as a position sequence avoids these mistakes.

Final Answer:
The correct continuation of the pattern is XXXXXXx.