In a particular year, the month of january had exactly 4 thursdays, and 4…
2026
In a particular year, the month of january had exactly 4 thursdays, and 4 sundays. On which day of the week did january 1st occur in the year?
- A.
Monday
- B.
Tuesday
- C.
Friday
- D.
Sunday
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Show answer & explanation
Correct answer: A
Key idea: A 31-day month has three weekdays that occur 5 times and four weekdays that occur 4 times. The three weekdays that occur 5 times are the month’s start day and the next two consecutive weekdays.
If January starts on a given weekday, that weekday and the next two weekdays will each occur 5 times.
We are told that Thursday and Sunday occur 4 times, so neither Thursday nor Sunday can be among the three weekdays that occur 5 times.
The only sequence of three consecutive weekdays that excludes both Thursday and Sunday is Monday, Tuesday, Wednesday.
Therefore January 1 must be a Monday.
Answer: Monday.