alleryఒక పట్టణంలో, 60 శాతం మంది X వార్తాపత్రికను, 40 శాతం మంది Y వార్తాపత్రికను మరియు 20 శాతం మంది రెండింటినీ చదువుతారు. రెండింటినీ చదవని వారు ఎంత శాతం మంది?
A10
B20
C15
D25
Answer & Solution
Correct answer: B. 20
కనీసం ఒకదానిని చదివేవారు = 60 + 40 - 20 = 80 శాతం, కాబట్టి రెండింటినీ చదవని వారు 20 శాతం.
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