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In a city of 3000 adults, one-third read paper A, two-fifths read paper B and one-fifth read both, as the note says. How many adults read neither paper?

Competition practiceVenn Diagrams
  • A1600
  • B1400
  • C800
  • D1000

Step-by-Step Solution

At least one , so neither of 3000 . 1600 is the readers, 800 adds the two papers without taking away the both-group, and 1000 is one-third of the city.
Answer: B) 1400

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