Question

Complete the following alphanumeric series:

Hint:

In alphanumeric series: \begin{itemize} \item Check alphabetical order (forward or reverse), \item Observe numerical differences carefully, \item Look for independent patterns in each position. \end{itemize}

Answer 1

Step 1: Observe the first letters: \[ Z,\; Y,\; X,\; W,\; V \] They follow reverse alphabetical order.
Step 2: Observe the middle numbers: \[ 24,\; 15,\; 9,\; 3,\; 0 \] These numbers decrease as: \[ -9,\; -6,\; -6,\; -3 \] indicating a decreasing pattern leading to 9.
Step 3: Observe the last letters: \[ A,\; B,\; C,\; D,\; E \] They follow alphabetical order.
Step 4: Hence, the missing term must be: \[ \boxed{\text{X9C}} \]