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Question

Using the reverse code (Z=1 to A=26), what is the sum of the reverse positions of the first and last letters of "KNOWLEDGE"?

This question was previously asked in
SSC CGL 2025 Tier 2 Paper 1 Question Paper (19-Jan-2026)
The correct answer is
38

Solution: KNOWLEDGE Letter Position Sum

This question requires finding the sum of the reverse alphabetical positions for the first and last letters of the word "KNOWLEDGE", using the code where Z=1, Y=2, ..., A=26.

Understanding the Reverse Code

The reverse code assigns numbers to letters starting from Z as 1. The formula to find the reverse position of a letter is: $ \text{Reverse Position} = 27 - (\text{Standard Position}) $ where the Standard Position is the letter's normal position in the alphabet (A=1, B=2, ...).

Identifying Key Letters

The word is "KNOWLEDGE".

  • The first letter is 'K'.
  • The last letter is 'E'.

Calculating Reverse Positions

First, find the standard positions:

  • 'K' is the 11th letter of the alphabet.
  • 'E' is the 5th letter of the alphabet.

Now, apply the reverse position formula:

  • Reverse position of 'K': $ 27 - 11 = 16 $
  • Reverse position of 'E': $ 27 - 5 = 22 $

Summing the Reverse Positions

Add the calculated reverse positions:

$ \text{Sum} = (\text{Reverse Position of K}) + (\text{Reverse Position of E}) $ $ \text{Sum} = 16 + 22 $ $ \text{Sum} = 38 $

The sum of the reverse positions of the first and last letters of "KNOWLEDGE" is 38.

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