Examine the following statements : 1. George attends Music classes on Monday. 2. He attends Mathematics classes on Wednesday. 3. His Literature classes are not on Friday. 4. He attends History classes on the day following the day of his Mathematics classes. 5. On Tuesday, he attends his Sports classes. If he attends just one subject in a day and his Sunday is free, then he is also free on
- (a) Monday
- (b) Thursday
- (c) Saturday
- (d) Friday ✓ UPSC's answer
Why the answer is (d)
• Statement 1 places Music on Monday.
• Statement 5 places Sports on Tuesday.
• Statement 2 places Mathematics on Wednesday.
• Statement 4 states History is on the day following Mathematics (Wednesday), so History is on Thursday.
• Statement 3 states Literature is not on Friday, and since Sunday is free, the only remaining day for Literature is Saturday.
• With Monday, Tuesday, Wednesday, Thursday, and Saturday occupied, Friday is the only day left free.
Why the other options are wrong
- (a) Monday
- Monday is occupied by Music classes as stated in Statement 1.
- (b) Thursday
- Thursday is occupied by History classes, which follow Mathematics on Wednesday as per Statement 4.
- (c) Saturday
- Saturday is occupied by Literature classes, as it is the only remaining day after excluding Friday (Statement 3) and Sunday (free).
Asked in the CSAT Paper II of the UPSC Civil Services Preliminary Examination 2014, held on 24 August 2014. Question and answer key: Union Public Service Commission. Explanation: UPSC Answer Check.