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    Question

    In a certain code language ‘379’ means

    ‘this is book’, ‘736’ means ‘book is worth’ and ‘578’ means ‘that are book’. What is the code for book?
    A 3 Correct Answer Incorrect Answer
    B 7 Correct Answer Incorrect Answer
    C 9 Correct Answer Incorrect Answer
    D 5 Correct Answer Incorrect Answer

    Solution

    ‘379’ → ‘this is book’….. (I) ‘736’ → ‘book is worth’….. (II) ‘578’ → ‘that are book’……. (III) From (I) and (III), the code for ‘book’ is 7.

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