If RESULT is coded as SFTVMU then EXAM will be coded as?

Concept: In letter-shifting (substitution) coding, every letter of a word is replaced by the letter that is a fixed number of positions ahead of it in the alphabet. To crack the code, compare each letter of the given word with the corresponding letter of its coded form to find this fixed shift, then apply the exact same shift to every letter of the target word.

Applying this to RESULT → SFTVMU:

1. R (18th letter) → S (19th letter): shift of +1

2. E (5th letter) → F (6th letter): shift of +1

3. S (19th letter) → T (20th letter): shift of +1

4. U (21st letter) → V (22nd letter): shift of +1

5. L (12th letter) → M (13th letter): shift of +1

6. T (20th letter) → U (21st letter): shift of +1

Every letter is shifted forward by exactly one position, so the rule is: each letter → next letter of the alphabet.

Now apply the same +1 shift to each letter of EXAM:

1. E → F

2. X → Y

3. A → B

4. M → N

Cross-check: reversing the same rule (shifting each letter of SFTVMU back by one position) restores RESULT exactly (S→R, F→E, T→S, V→U, M→L, U→T), confirming the +1 shift is the correct rule to apply forward to EXAM as well.

So, EXAM is coded as FYBN.