alleryகணம் A-இல் 30 உறுப்புகளும், கணம் B-இல் 20 உறுப்புகளும் உள்ளன, மேலும் இரண்டிற்கும் பொதுவாக 8 உறுப்புகள் உள்ளன. A அல்லது B-இல் எத்தனை உறுப்புகள் உள்ளன?
A42
B50
C58
D38
Answer & Solution
Correct answer: A. 42
சேர்ப்பு என்பது 30 + 20 - 8 = 42 ஆகும், ஏனெனில் பொதுவான உறுப்புகள் கூடுதலில் இருமுறை கணக்கிடப்படுகின்றன.
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