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In a certain code language, 'Come Back Home' is written as 'Tu Ru Qu' and 'She Went Back' is written as 'Du Su Ru' and 'He Went Home' is written as 'Pu Tu Du'. How is 'She' written in the given language?
Tu
Su
Du
Ru
Su
Look for common words across sentences. Since 'Back' is common to the first two sentences and 'Ru' is common to their codes, 'Back' = 'Ru'. Then identify words unique to each sentence to isolate the remaining codes.
Look for common words across sentences. Since 'Back' is common to the first two sentences and 'Ru' is common to their codes, 'Back' = 'Ru'. Then identify words unique to each sentence to isolate the remaining codes.
Analyze Sentence 1 and 2
'Come Back Home' = 'Tu Ru Qu' and 'She Went Back' = 'Du Su Ru'. The common word is 'Back' and the common code is 'Ru'. Therefore, 'Back' = 'Ru'.
Analyze Sentence 2 and 3
'She Went Back' = 'Du Su Ru' and 'He Went Home' = 'Pu Tu Du'. The common word is 'Went' and the common code is 'Du'. Therefore, 'Went' = 'Du'.
Extract the Code for 'She'
In 'She Went Back' (Du Su Ru), we know 'Back' = 'Ru' and 'Went' = 'Du'. The remaining word 'She' must correspond to the remaining code 'Su'.
A: 'Tu' corresponds to either 'Home' or 'Come'. C: 'Du' is 'Went'. D: 'Ru' is 'Back'.
B is correct because by comparing the common words and codes across the sentences, 'She' is uniquely identified as 'Su'.
In coding-decoding questions, always look for the word that appears most frequently first, as its code will be the easiest to isolate via comparison.
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