In a library, 50 books are fiction, 30 are non-fiction, and 10 are both. How many books are only fiction?
Practice Questions
1 question
Q1
In a library, 50 books are fiction, 30 are non-fiction, and 10 are both. How many books are only fiction?
30
40
50
10
The number of books that are only fiction is calculated by subtracting the number of books that are both from the total fiction books: 50 - 10 = 40.
Questions & Step-by-step Solutions
1 item
Q
Q: In a library, 50 books are fiction, 30 are non-fiction, and 10 are both. How many books are only fiction?
Solution: The number of books that are only fiction is calculated by subtracting the number of books that are both from the total fiction books: 50 - 10 = 40.
Steps: 4
Step 1: Identify the total number of fiction books. In this case, there are 50 fiction books.
Step 2: Identify the number of books that are both fiction and non-fiction. Here, there are 10 books that are both.
Step 3: To find the number of books that are only fiction, subtract the number of books that are both from the total number of fiction books. So, calculate 50 (total fiction) - 10 (both) = 40.
Step 4: The result is that there are 40 books that are only fiction.
