Question
Download Solution PDFIf 19 July 2012 is Thursday, then what will be the day of the week on 11 January 2018?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven: 19 July 2012 is Thursday
The number of odd days from 19 July 2012 to 11 January 2018 :
| Year | Period | Calculation | Odd days |
| 2012 | 19 July 2012 - 31 December 2012 | 12 July + 31 August + 30 September + 31 October + 30 November + 31 December = 165 days | 165 ÷ 7 = 4 |
| 2013 - 2017 | Full years (4 Ordinary years + 1 Leap years) | (1 odd day × 4 Ordinary years) + (2 odd days × 1 Leap years) = 6 odd days | 6 |
| 2011 | 1st January 2011 - 11 January 2018 | 11 January = 11 days | 11 ÷ 7 = 4 |
| Total odd days | (14 ÷ 7) = 0 | ||
∴ The number of odd days from 19 July 2012 to 11 January 2018 ⇒ 0
⇒So, Zero odd days will be added to Thursday because the day is asked in future.
∴ Thursday was the day of the week on 11 January 2018.
Hence, "Option 4" is the correct answer.
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