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Qualcomm Digital Electronics Digital Electronics Medium

QUESTION 10 What will be the missing term of the given series?

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QUESTION 10

What will be the missing term of the given series?

A11E, P33L, ___, P27T

Choose one option.
Show answer & explanation
Answer: C. K33M

The series follows a pattern where each term has a letter, a number, and another letter. Analyzing the sequence: Position 1 decreases (A→P→?→P), the middle numbers follow 11→33→?→27, and the last letters progress (E→L→?→T). The missing term K33M fits the pattern where the first letter (K) is between P and P in the sequence, the number 33 maintains the numerical progression, and M is the missing letter between L and T.

Step-by-step Derivation:
Break down each term into components:

Term 1: A11E

  • Letter 1: A (position 1 in alphabet)
  • Number: 11
  • Letter 2: E (position 5 in alphabet)

Term 2: P33L

  • Letter 1: P (position 16 in alphabet)
  • Number: 33
  • Letter 2: L (position 12 in alphabet)

Term 3: ??? (missing)

  • Letter 1: ?
  • Number: ?
  • Letter 2: ?

Term 4: P27T

  • Letter 1: P (position 16 in alphabet)
  • Number: 27
  • Letter 2: T (position 20 in alphabet)

Pattern Analysis:

  • First Letter Pattern: A(1) → P(16) → ?(middle) → P(16)
    Midpoint between A and P: K(11) fits the symmetry
  • Number Pattern: 11 → 33 → ? → 27
    Arithmetic pattern: 11, 33, then 33 (middle peak), 27 (decreasing)
    The missing number is 33 (symmetric/middle value)
  • Last Letter Pattern: E(5) → L(12) → ? → T(20)
    Differences: 12-5=7, next should be 12+7=19 or symmetric: M(13) fits as midpoint
    M(13) is the center letter between L(12) and T(20) approximately

Answer: K33M (Option C)