The ratio of the number of English books to Hindi books in a library shelf is 7:4. If 150 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.
Number of Hindi books = 150/0.3 = 500 Number of English books = 500 × (7/4) = 875 Required difference = 875 – 500 = 375
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