In a library, 30% of the books are in Hindi, 20% are in English and 18% are in the French. The remaining 28800 books are in regional language. What is the total number of books in the library?
90000
Percentage of books in Hindi, English and French together = 30% + 20% + 18% = 68%.
So the percentage of books in regional language = 100% - 68% = 32%.
32% of the total books = 28800.
Let the total number of books be T. Then (32/100) x T = 28800, so T = 28800 x 100/32 = 90000.
So the total number of books in the library is 90000.
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