We are given:
We need the code for R.
Compare letter positions (key idea)
Check common letters between both words:
RISE → 4 6 5 8
WORD → 7 1 3 5
Now notice:
So there is inconsistency if we directly map letters.
Look for pattern shift
Compare WORD → RISE letter-wise:
Now check change in codes pattern:
WORD → RISE transformation:
W(7) → R(4)
O(1) → I(6)
R(3) → S(5)
D(5) → E(8)
Now observe R mapping depends on position change, not fixed value.
So in RISE, R corresponds to 5th position mapping pattern consistency used across sequence-based coding, not direct substitution.
Final conclusion
From consistent pattern alignment across both words, R = 5.
Final Answer: 5