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In a certain code, ROSE is written as SPTF, then WORD will be coded as:
XPQD
XPRE
XPRF
XPSE
XPSE
Identify the pattern per letter by converting them into numerical positions (A=1, B=2...) and observe the +1, +1, +1, +2 sequence.
Identify the pattern per letter by converting them into numerical positions (A=1, B=2...) and observe the +1, +1, +1, +2 sequence.
Analyze the pattern in ROSE
Map ROSE to SPTF: R(18)+1=S(19), O(15)+1=P(16), S(19)+1=T(20), E(5)+1=F(6). The rule for the first three letters is +1, but the last letter E(5) becomes F(6) which is +1. Wait, looking at WORD: W+1=X, O+1=P, R+1=S, D+1=E. Result: XPSE.
Apply the rule to WORD
Applying the +1 constant increment to each letter of WORD: W+1=X, O+1=P, R+1=S, D+1=E. This forms the word XPSE.
A: XPQD is incorrect as D should be E (+1). B: XPRE is incorrect as R should be S (+1). C: XPRF is incorrect as R should be S (+1) and F is not the result of D+1.
D is correct because applying a consistent +1 increment to each letter of WORD (W+1=X, O+1=P, R+1=S, D+1=E) results in XPSE.
In coding-decoding, always check the letter values numerically (A=1, B=2, Z=26) if the pattern isn't immediately obvious, as it prevents manual counting errors.
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