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A library has 500 books. If 20% of them are fiction, how many fiction books are

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Question: A library has 500 books. If 20% of them are fiction, how many fiction books are there?

Options:

  1. 100
  2. 80
  3. 120
  4. 90

Correct Answer: 100

Solution: 

20% of 500 is 100, so there are 100 fiction books.

A library has 500 books. If 20% of them are fiction, how many fiction books are

Practice Questions

Q1
A library has 500 books. If 20% of them are fiction, how many fiction books are there?
  1. 100
  2. 80
  3. 120
  4. 90

Questions & Step-by-Step Solutions

A library has 500 books. If 20% of them are fiction, how many fiction books are there?
  • Step 1: Understand that 20% means 20 out of every 100.
  • Step 2: Find out how many groups of 100 are in 500. This is done by dividing 500 by 100, which equals 5.
  • Step 3: Since there are 5 groups of 100 in 500, we need to find 20% of 5 groups.
  • Step 4: Multiply 5 (the number of groups) by 20 (the percentage of fiction books). This gives us 5 * 20 = 100.
  • Step 5: Therefore, there are 100 fiction books in the library.
  • Percentage Calculation – Understanding how to calculate a percentage of a total amount.
  • Basic Arithmetic – Performing multiplication to find the number of fiction books.
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