allery100 మంది వ్యక్తులలో, 70 మంది టీ తాగుతారు, 45 మంది కాఫీ తాగుతారు మరియు అందరూ కనీసం ఒకదానిని తాగుతారు. రెండింటినీ తాగేవారు ఎంతమంది?
A25
B10
C20
D15
Answer & Solution
Correct answer: D. 15
ప్రతి ఒక్కరూ 100 మంది సమ్మేళనంలో ఉన్నందున, రెండింటినీ తాగేవారు = 70 + 45 - 100 = 15.
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