allery70 பேர் கொண்ட ஒரு குழுவில், 40 பேர் P என்ற இதழையும், 30 பேர் Q என்ற இதழையும், 10 பேர் இரண்டையும் படிக்கிறார்கள். சரியாக ஒன்றை மட்டும் படிப்பவர்கள் எத்தனை பேர்?
A55
B50
C40
D45
Answer & Solution
Correct answer: B. 50
சரியாக ஒன்று = (40 - 10) + (30 - 10) = 50.
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