allery45 ವಿದ್ಯಾರ್ಥಿಗಳ ತರಗತಿಯಲ್ಲಿ 25 ಜನರು ಇತಿಹಾಸ ಮತ್ತು 20 ಜನರು ಭೂಗೋಳಶಾಸ್ತ್ರವನ್ನು ಅಧ್ಯಯನ ಮಾಡುತ್ತಾರೆ. 5 ಜನರು ಇವುಗಳಲ್ಲಿ ಯಾವುದೇ ವಿಷಯವನ್ನೂ ಅಧ್ಯಯನ ಮಾಡುವುದಿಲ್ಲ. ಎರಡೂ ವಿಷಯಗಳನ್ನು ಅಧ್ಯಯನ ಮಾಡುವವರು ಎಷ್ಟು?
A15
B10
C5
D0
Answer & Solution
Correct answer: C. 5
ಒಕ್ಕೂಟ = 45 - 5 = 40. ಎರಡೂ = 25 + 20 - 40 = 5.
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