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In a city with 10,000 households, it is observed that 40% of the households purchase newspaper A, 20% purchase newspaper B, and 10% purchase newspaper C. Also, 5% purchase both A and B, 3% purchase both B and C, and 4% purchase both A and C. If 2% of the households subscribe to all three newspapers, how many households buy only newspaper A?
- 3100
- 3300
- 2900
- 1400
Correct answer: 3300
Solution
To find the number of households that buy only newspaper A, we subtract those who buy A and B, A and C, and all three newspapers from the total purchasing A. This calculation shows that 3300 households exclusively purchase newspaper A.
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