question: Sarah went to buy books from the store and spent $300 on the books. If each book was $15 and she gave an equal number of books to her 4 kids, how many books did each child get?
answer: Since she spent $300 on the books and each book's cost was $15, she bought $300/$15= <<300/15=20>>20 books.
  If Sarah gave an equal number of books to each of her children, each kid received 20/4 = <<20/4=5>>5 books.
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