there are 9000 books in a library.how many shelves are there in a library if 400 books can be kept in 4 shelves?
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Answer:
90
Step-by-step explanation:
no. of books = 9000
no. of books in 4 shelfs = 400
no. of books in 1 shelf = 400/4
= 100
no. of book shelfs = 9000/100
= 90
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