allery50 మంది ఉన్న ఒక తరగతిలో 30 మంది గణితం, 25 మంది సైన్స్ చదువుతున్నారు మరియు 15 మంది రెండింటినీ చదువుతున్నారు. రెండింటిలో దేనినీ చదవనివారు ఎంతమంది?
A5
B12
C10
D8
Answer & Solution
Correct answer: C. 10
Union = 30 + 25 - 15 = 40 మంది విద్యార్థులు, కాబట్టి 50 - 40 = 10 మంది దేనినీ చదవడం లేదు.
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