BPSC – Combined Competitive Examination · ಪ್ರಶ್ನೆ 84
In a class of 55 students, 34 like cricket and 26 like badminton; every student likes at least one. How many like both?
ಉತ್ತರ ತೋರಿಸು ಮತ್ತು ವಿವರಣೆ
ಉತ್ತರ: (B) 5
ವಿವರಣೆ
n(A ∩ B) = n(A) + n(B) − n(A ∪ B) = 34 + 26 − 55 = 5.
- (A) ತಪ್ಪು
Wrong: 34 + 26 − 55 = 5.
- (B) ಸರಿ
Correct: both = 34 + 26 − 55 = 5.
- (C) ತಪ್ಪು
Wrong: 34 + 26 − 55 = 5.
- (D) ತಪ್ಪು
Wrong: 34 + 26 − 55 = 5.
- (E) ತಪ್ಪು
Wrong: only one of the options A–D is correct.