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    Question

    The ratio of the number of English books to Hindi books

    in a library shelf is 7:5. If 144 Hindi books are written by Pradeep, which constitutes 30% of the Hindi books, then find the difference between the number of English books and Hindi books in the shelf.
    A 280 Correct Answer Incorrect Answer
    B 192 Correct Answer Incorrect Answer
    C 240 Correct Answer Incorrect Answer
    D 175 Correct Answer Incorrect Answer
    E 100 Correct Answer Incorrect Answer

    Solution

    Number of Hindi books = 144/0.3 = 480 Number of English books = 480 × (7/5) = 672 Required difference = 672 – 480 = 192

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