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in a library there is 30% of computer books 5% of English books and 35% of science books and 900 books are any other subject what is the total books of English in the library

Posted by Gauri Dalal 3 years, 1 month ago

CBSE > Class 07 > Mathematics

1 answers

Abhijeet Singh 3 years, 1 month ago

5%English+30%Computer+35%Science=70% of books 100%-70%=30% And other are 900 ,which is equal to 30% Solving 30% of total book = 900 other books. We get Total books = (900*100)/30=3000 Total books=3000 5% of total book is English Thus, Number of English book= 5% of 3000= 5*3000/100 =150(Answer)

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