BPSC – Combined Competitive Examination · ಪ್ರಶ್ನೆ 83
Anil and Suman together can finish a job in 12 days, which Anil alone can do in 20 days. How long will Suman take alone?
ಉತ್ತರ ತೋರಿಸು ಮತ್ತು ವಿವರಣೆ
ಉತ್ತರ: (C) 30 days
ವಿವರಣೆ
Combined rate 1/12 minus Anil's 1/20 leaves Suman's rate 1/30.
- (A) ತಪ್ಪು
Wrong: 1/12 − 1/20 = 1/30, not 1/28.
- (B) ತಪ್ಪು
Wrong: incorrect.
- (C) ಸರಿ
Correct: Suman's rate = 1/12 − 1/20 = 1/30, so 30 days.
- (D) ತಪ್ಪು
Wrong: incorrect.
- (E) ತಪ್ಪು
Wrong: only one of the options A–D is correct.