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A bookshop has some fiction and non books. 2/5 of the books are fiction books. Of these, 1/5 are mystery stories. 1/3 of the non fiction books are mystery stories too. What fraction of all the books in the shop are mystery books?

User Jmarkstar
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2 Answers

4 votes
1/3 out of all the books
User Caffo
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2.8k points
2 votes

Answer:

1/3 of all of the books

Explanation:

5/5 - (2/5 +1/5) =2/5

2/5(1/3) = 2/15 nonfiction mystery books

2/15 + 1/5 = mystery books

1/5 = 3/15

2/15 + 3/15 = 5/15

5/15 = 1/3

User Swolf
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3.5k points