allery72 மாணவர்களில், 40 பேர் பாடுகிறார்கள், 32 பேர் ஆடுகிறார்கள் மற்றும் 12 பேர் இரண்டையும் செய்கிறார்கள். இரண்டில் குறைந்தது ஒன்றிலாவது பங்கேற்பவர்கள் எத்தனை பேர்?
A64
B60
C58
D66
Answer & Solution
Correct answer: B. 60
சேர்ப்பு = 40 + 32 - 12 = 60 மாணவர்கள்.
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