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140 people in a Pune housing society were asked about three newspapers; 12 read none. The note gives each paper's total and the lenses show those who read exactly two. How many read only the Marathi paper?

Competition practiceVenn Diagrams
  • A31
  • B19
  • C25
  • D6

Step-by-Step Solution

At least one . The totals add to , so and read all three. Marathi only . 31 forgets the 6, 19 takes it away twice, and 6 is the all-three number.
Answer: C) 25

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