allery80 ಜನರ ಸಮೀಕ್ಷೆಯಲ್ಲಿ, 45 ಜನರು ಚಹಾ ಕುಡಿಯುತ್ತಾರೆ, 35 ಜನರು ಕಾಫಿ ಕುಡಿಯುತ್ತಾರೆ ಮತ್ತು 10 ಜನರು ಎರಡನ್ನೂ ಕುಡಿಯುತ್ತಾರೆ. ಎಷ್ಟು ಜನರು ಕಾಫಿ ಮಾತ್ರ ಕುಡಿಯುತ್ತಾರೆ?
A15
B20
C25
D35
Answer & Solution
Correct answer: C. 25
ಕೇವಲ ಕಾಫಿ = n(ಕಾಫಿ) - n(ಚಹಾ ∩ ಕಾಫಿ) = 35 - 10 = 25.
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