Which of the following pairs of years have identical calendars?
Show answer & explanation
Correct answer: B
Explanation
From option 2, the years 1917 and 1923
Year type: 1917 and 1923 are both ordinary years.
Difference in years: 1923−1917=6 years
Leap years between them: Only 1 leap year (1920)
Odd days = Difference in years + Number of leap years
Odd days = 6+1=7
Since 7÷7=0, the remainder for 1917 and 1923 will be exactly the same.