A school library at Punggol Primary has 200 books on display. Of these, 80 are fiction, 60 are non-fiction and 24 are reference books. The rest are magazines. What percentage of the books on display are magazines?
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Worked Solution
Step 1: Add the non-magazine books: 80 + 60 + 24 = 164.\n
Step 2: Find the number of magazines: 200 − 164 = 36.\n
Step 3: Write magazines as a fraction of all books: 36 / 200.\n
Step 4: Convert to a percentage: 36 / 200 × 100% = 3600 / 200 % = 18%.\nCheck: 18% of 200 = 0.18 × 200 = 36 magazines. ✓
Answer: 18%
Correct answer: 18%
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