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1. What was the day of the week on 24th July 2011?
Formula : (Date + Month code + No.of years + No.of leap year + Century code)/7
Solution:
| Day Codes | |
|---|---|
| Saturday | 0 |
| Sunday | 1 |
| Monday | 2 |
| Tuesday | 3 |
| Wednesday | 4 |
| Thursday | 5 |
| Friday | 6 |
| Month Codes | |
|---|---|
| January | 1 |
| February | 4 |
| March | 4 |
| April | 0 |
| May | 2 |
| June | 5 |
| July | 0 |
| August | 3 |
| September | 6 |
| October | 1 |
| November | 4 |
| December | 6 |
| Century Codes | |
|---|---|
| 1500 - 1599 | 0 |
| 1600 - 1699 | 6 |
| 1700 - 1799 | 4 |
| 1800 - 1899 | 2 |
| 1900 - 1999 | 0 |
| 2000 - 2099 | 6 |
| 2100 - 2199 | 4 |
| 2200 - 2299 | 2 |
| 2300 - 2399 | 0 |
Formula : (Date + Month code + No.of years + No.of leap year + Century code)/7