Question
Download Solution PDFIn a year-end examination, 6 papers-Maths, Physics, Geography, Economics, Chemistry, History- are scheduled on 6 consecutive days of a week (Monday -Saturday).
1. Maths paper is after the Chemistry paper, with a 1-day gap between them.
2. Physics paper is on Monday.
3. Geography paper is not on the last day.
4. History paper, which is scheduled on the previous day of the Maths paper, has a two-day gap with the Physics paper.
Which paper is scheduled on Saturday?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF2. Physics paper is on Monday.
| Monday | Physics |
| Tuesday | |
| Wednesday | |
| Thursday | |
| Friday | |
| Saturday |
3. Geography paper is not on the last day.
| Monday | |
| Tuesday | |
| Wednesday | |
| Thursday | |
| Friday | |
| Saturday |
1. Maths paper is after the Chemistry paper, with a 1-day gap between them.
| Chemistry |
| Maths |
4. History paper, which is scheduled on the previous day of the Maths paper, has a two-day gap with the Physics paper.
Case 1.
| History |
| Maths |
| Physics |
Case 2.
| Physics |
| History |
| Maths |
On combining (4) and (2)
We can eliminate Case 1st of 4 because Physics is on Monday and in Case 1st, there are three exams.
| Monday | Physics |
| Tuesday | |
| Wednesday | |
| Thursday | History |
| Friday | Maths |
| Saturday |
On combining (1), (4) and (2)
| Monday | Physics |
| Tuesday | |
| Wednesday | Chemistry |
| Thursday | History |
| Friday | Maths |
| Saturday |
On combining (1), (2), (3) and (4)
Geography is not on Saturday than only left day is Friday.
Economics is only subject left than it will be on Saturday.
| Monday | Physics |
| Tuesday | Geography |
| Wednesday | Chemistry |
| Thursday | History |
| Friday | Maths |
| Saturday | Economics |
Economics paper is on Saturday.
Hence, the correct answer is "Saturday".
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