Question
Download Solution PDFWhat day of the week was 31st January, 2007?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven: 31st January, 2007
So, calculating total number of odd days:
Total odd days = 0 + 2 + 5 + 3 = 10 days = 1 week + 3 odd days
So, '3' is the code for "Wednesday".
Hence, "Option 4" is the correct answer.
Additional Information
| No. of odd days | Ordinary year | Leap year |
| 365 ÷ 7 = 52 weeks + 1 odd day |
366 ÷ 7 = 52 weeks + 2 odd day |
| Years | No. of odd days |
| 100 | 5 |
| 200 | 3 |
| 300 | 1 |
| 400 | 0 |
Note : Multiple of 400 years i.e 800, 1200, 1600, 2000 will also have 0 odds days.
| Days | No. of odd days |
| Sunday | 0 |
| Monday | 1 |
| Tuesday | 2 |
| Wednesday | 3 |
| Thursday | 4 |
| Friday | 5 |
| Saturday | 6 |
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