alleryಒಂದು ವಸಾಹತು ಪ್ರದೇಶದಲ್ಲಿ, 70 ಹಿಂದಿ ಮಾತನಾಡುತ್ತಾರೆ, 50 ಇಂಗ್ಲಿಷ್ ಮಾತನಾಡುತ್ತಾರೆ ಮತ್ತು 30 ಎರಡೂ ಮಾತನಾಡುತ್ತಾರೆ. ಈ ಎರಡು ಭಾಷೆಗಳಲ್ಲಿ ಕನಿಷ್ಠ ಒಂದನ್ನು ಎಷ್ಟು ಜನರು ಮಾತನಾಡುತ್ತಾರೆ?
A60
B70
C80
D90
Answer & Solution
Correct answer: D. 90
ಕನಿಷ್ಠ ಒಂದು = n(H ∪ E) = 70 + 50 - 30 = 90.
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