Choose the missing term out of the given alternatives:
Q1F, S2E, U6D, W21C, ?
Explanation
1. The First Letter Pattern
The first letters are: Q, S, U, W, ...
Looking at their positions in the alphabet:
The next first letter is Y.
2. The Middle Number Pattern
The numbers are: 1, 2, 6, 21, ...
The pattern involves multiplying by an increasing integer and then adding an increasing integer:
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(1×1)+1=2
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(2×2)+2=6
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(6×3)+3=21
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(21×4)+4=88
The next middle number is 88.
3. The Last Letter Pattern
The last letters are: F, E, D, C, ...
This is a simple reverse alphabetical order:
The next last letter is B.
Final Result
Combining these three parts (Y, 88, and B), we get the missing term:
Correct Option: (C) Y88B