alleryமூன்று தனித்தனி குழுக்களில் பொதுவான உறுப்பினர்கள் எவருமின்றி முறையே 20, 15 மற்றும் 10 உறுப்பினர்கள் உள்ளனர். மூன்றிலும் சேர்த்து உள்ள மொத்த உறுப்பினர்கள் எத்தனை பேர்?
A30
B40
C35
D45
Answer & Solution
Correct answer: D. 45
எந்த ஒரு பொதுவான பகுதியும் இல்லாததால், சேர்ப்பு என்பது ஒரு எளிய கூட்டுத்தொகையாகும்: 20 + 15 + 10 = 45.
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