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If 5 November 2019 was Tuesday, then what was the day of the week on 5 December 2011?

Solution

✅ Correct Option: 3

From 5 November to 5 December 2019 is 30 days, and 30÷730 \div 7 leaves 2, so 5 December 2019 was Thursday. From 5 December 2011 to 5 December 2019 is 8 years containing two leap days, in 2012 and 2016, giving 8+2=108 + 2 = 10 odd days, that is 3 after dividing by 7. Thursday minus 3 gives Monday.

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