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In a certain code language, ‘let us eat’ is written as ‘de hj kn’ and ‘let us play’ is written as ‘de kn cx’. How is ‘eat’ written in the given language?
hj
cx
de
kn
hj
Identify common words between sentences and eliminate their matching codes to isolate the unique code for the target word.
Identify common words between sentences and eliminate their matching codes to isolate the unique code for the target word.
Analyze common terms
Sentence 1: 'let us eat' = 'de hj kn'. Sentence 2: 'let us play' = 'de kn cx'. The common words in both sentences are 'let' and 'us'.
Identify common codes
The codes present in both 'de hj kn' and 'de kn cx' are 'de' and 'kn'. Therefore, 'let us' corresponds to the set {'de', 'kn'}.
Isolate the target word
In Sentence 1 ('let us eat' = 'de hj kn'), by removing the codes for 'let us' ('de' and 'kn'), only the code 'hj' remains, which must represent the word 'eat'.
B: 'cx' is the code for 'play' found in the second sentence. C: 'de' is one of the codes for 'let' or 'us'. D: 'kn' is one of the codes for 'let' or 'us'.
A is correct because by comparing the two sentences, 'let' and 'us' are common and map to 'de' and 'kn', leaving 'hj' as the only code for 'eat'.
In multi-sentence coding questions, always look for repeating words across sentences to filter out noise codes before trying to define individual word mappings.
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