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In each of the following questions various terms of an alphabet series / letter number series given with one or more terms missing as shown by (?), choose the missing terms out of the given alternatives 
Q1F, S2E, U6D, W21C, ?
  • a)
    Y44B
  • b)
    Y66B
  • c)
    Y88B
  • d)
    Z88B
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Ineach of the following questions various terms of an alphabet series ...
The first letter of each term is moved two steps forward and
the last letter is moved one steps backward to obtain the corresponding letters of the next term.
The number series runs as follows :
1 x 1 + 1 = 2,
2 x 2 + 2 = 6,
6 x 3 + 3 = 21,
21 x 4 + 4 = 88.
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Most Upvoted Answer
Ineach of the following questions various terms of an alphabet series ...
Understanding the Series
The given series is: F, S2E, U6D, W21C, ?
To solve for the missing term, we need to analyze the patterns in each part of the series.

Analyzing the Letters
- The first letter of each term is increasing by 2 positions in the alphabet:
- F (6) → U (21) → W (23) → ?
- F (6) + 2 = H (8) → S (19) + 2 = U (21) → U (21) + 2 = W (23) → W (23) + 2 = Y (25)

Analyzing the Numbers
- The numbers in the series follow a pattern:
- The sequence is 2, 6, 21, ?
- The differences between consecutive terms are:
- 6 - 2 = 4
- 21 - 6 = 15
- The difference itself seems to be increasing:
- 4 (2^2) → 15 (3^2 + 6) → 44 (4^2 + 28)
- Next term: 21 + 44 = 65
However, upon further inspection, a consistent pattern emerges of multiplying the previous number by increasing integers and adding a constant:
- 1st term: 2 * 1 = 2
- 2nd term: 2 * 2 + 2 = 6
- 3rd term: 6 * 3 + 3 = 21
- 4th term: 21 * 4 + 4 = 88

Finalizing the Last Part
- The final letter is the third letter of the alphabet, which is C. Thus, the missing term becomes Y88C.

Conclusion
The correct answer is option 'C': Y88B.
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Ineach of the following questions various terms of an alphabet series / letter number series given with one or more terms missing as shown by (?), choose the missing terms out of the given alternativesQ1F, S2E, U6D, W21C, ?a)Y44B b)Y66B c)Y88B d)Z88B Correct answer is option 'C'. Can you explain this answer?
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