f EXAM is coded as FYBN, then TEST is coded as ?Question Description : SFTS NBYFSFRS UFTU

To decode the given problem, let's analyze the coding pattern used in the example.

1. Break Down the Problem

We need to find out how the letters in "EXAM" are converted into "FYBN" and use that pattern to determine how "TEST" would be coded.

2. Relevant Concepts

In the coding scheme:

• E (5) → F (6) → +1
• X (24) → Y (25) → +1
• A (1) → B (2) → +1
• M (13) → N (14) → +1

This indicates that each letter is shifted forward by 1 position in the alphabet.

3. Analysis and Detail

Now, we will apply the same pattern to "TEST":

• T (20) → U (21)
• E (5) → F (6)
• S (19) → T (20)
• T (20) → U (21)

So, translating "TEST" with the same shift results in:

• T → U
• E → F
• S → T
• T → U

4. Verify and Summarize

We have consistently applied the same rule of shifting each letter by one position. The encoding for "TEST" is correctly computed by using the same principle observed in the first example.

Final Answer

Therefore, "TEST" is coded as UFTU.