Question: Which code word stands for 'good' in the coded sentence 'sin co bye'…
2023
Question: Which code word stands for 'good' in the coded sentence 'sin co bye' which means 'He is good' ?
Statements:
In the same code language, 'co mot det' means 'They are good'.
In the same code language, 'sin mic bye' means 'He is honest'.
- A.
I alone is sufficient while II alone is not sufficient
- B.
II alone is sufficient while I alone is not sufficient
- C.
Either I or II is sufficient
- D.
Neither I nor II is sufficient
Show answer & explanation
Correct answer: C
Concept: In coded-sentence data-sufficiency puzzles, a statement is sufficient for a target meaning-word's code the moment it isolates that code to exactly one word -- either directly, by sharing a meaning-word (and hence a code word) with the base sentence, or by elimination, once every other code word in the base sentence has been matched to some other meaning-word.
Statement I alone: 'co mot det' means 'They are good'. The only meaning-word this shares with the base sentence ('He is good') is 'good', and the only code word 'co mot det' shares with 'sin co bye' is 'co'. A single shared meaning-word matched to a single shared code word is enough on its own, so 'co' = 'good' is fixed -- Statement I alone is sufficient.
Statement II alone: 'sin mic bye' means 'He is honest'. The meaning-words it shares with the base sentence are 'He' and 'is', matched to the code words 'sin' and 'bye'. That leaves the base sentence's third code word, 'co', with no meaning-word left to pair with except 'good' -- so 'co' = 'good' is fixed by elimination, and Statement II alone is also sufficient.
Cross-check: both routes -- a direct shared word in Statement I, elimination in Statement II -- land on the same code word, 'co', for 'good'. Since each statement independently fixes it, neither statement needs the other, and the combination 'both together' is not required either. Result: Either I or II is sufficient.