If it was a Monday on 1 January 2018, what was the day of the week on 31 December 2018 ?
2018 is not a leap year. So there will be 365 days in the given year. These 365 days can also be said as 52 weeks and one day. As in the question, it is given that on 1st January 2018 the day was Monday. So on 30th December 2018, 52 weeks will be completed. It means that on 30th December 2018, the day was Sunday. Hence on 31st December 2018, the day will be Monday.
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