The given sequence is \( 6, 9, 14, x, 30, 41 \). Calculate the differences between consecutive terms:
\[ 9 - 6 = 3, \quad 14 - 9 = 5. \]Let \( x \) be the next term:
\[ x - 14 = 7 \quad \Rightarrow \quad x = 21. \]For the subsequent terms:
\[ 30 - 21 = 9, \quad 41 - 30 = 11. \] Step 2: Confirm the pattern.The differences between consecutive terms form the sequence:
\[ 3, 5, 7, 9, 11. \]This is an arithmetic progression with a common difference of \( 2 \), verifying the correctness of the solution.
Thus, the value of \( x \) is \( \boxed{21} \).
Which letter replaces the question mark? A, D, G, J, M, ?