Question
Logical Reasoning Question on Series
Find the missing link in the sequences given in the question.
Q1F, S2E, U6D, W21C.?
A
Y66B
B
Y44B
C
Y88B
D
Z88B
Answer
Y88B
Explanation
Solution
1. Analyze the letters:
- Q (+2) S (+2) U (+2) W (+2) = Y
The first letter follows a simple pattern of adding 2 to the alphabetical position.
2. Analyze the numbers:
- 1 (+1) 2 (+4) 6 (+15) 21 (+64) = 88
This pattern is more complex. Let's break it down:
- 1 x 1 + 1 = 2
- 2 x 2 + 2 = 6
- 6 x 3 + 3 = 21
- 21 x 4 + 4 = 88
The number is multiplied by its position in the sequence, and then the position number is added.
3. Analyze the last letter:
- F (-4) E (-3) D (-2) C (-1) = B
The last letter decreases by one less each time.
Therefore, the missing link is Y88B.
The correct answer is (C) : Y88B