Aptitude Calendar Problems Practice Online for Competitive Examinations. We added easy to advanced Calendar Practice Questions and Answers for SBI, RBI, RRB NTPC, RRB Group D, UPSC and State Public Service Commission Exams. If you have doubts regarding Quantitive Aptitude Practice Questions on Calendar subject, share in the comment box with question number.
Q16. What was the day of the week on January 1, 1 AD?
Correct Answer:
Sunday
Explanation: By Zeller’s Congruence, January 1, 1 AD, was a Sunday.
Q17. How many leap years are there between 2000 and 2100?
Correct Answer:
24
Explanation: Divide years by 4, exclude multiples of 100 but include multiples of 400. 25 leap years exist.
Q18. What day of the week was the 1st January 1901?
Correct Answer:
Tuesday
Explanation: Using Zeller’s formula, January 1, 1901, was a Tuesday.
Q19. What is the maximum number of days in 5 consecutive months?
Correct Answer:
153
Explanation: Maximum occurs with months having 31, 30, 31, 30, 31 = 153 days.
Q20. If 1st January 1980 was Tuesday, then what day of the week was 31st December 1989?
Correct Answer:
Monday
Explanation: Counting total days from 1980 to 1989, total odd days = 1. The final day is Monday.
Q21. What day of the week was November 11, 1918 (Armistice Day of World War I)?
Correct Answer:
Monday
Explanation: Using Zeller’s Congruence or counting method, November 11, 1918, was a Monday.
Q22. How many times does February 29 occur between 2001 and 2100?
Correct Answer:
24
Explanation: February 29 occurs only in leap years. From 2001 to 2100, there are 24 leap years.
Q23. If April 4, 2022, is Monday, what day will April 4, 2023, be?
Correct Answer:
Tuesday
Explanation: 2022 is not a leap year. Add 365 days (remainder 1). April 4, 2023, is a Tuesday.
Q24. If December 31, 1999, was Friday, what was January 1, 2000?
Correct Answer:
Saturday
Explanation: December 31 to January 1 advances the day by 1. Hence, Saturday.
Q25. Find the day of the week for July 4, 1776 (Declaration of Independence of the USA).
Correct Answer:
Thursday
Explanation: By calculating odd days from a known base, July 4, 1776, was a Thursday.
Q26. If March 1, 1900, was a Thursday, what day was March 1, 1901?
Correct Answer:
Friday
Explanation: 1900 is not a leap year, so add 365 days (remainder 1). The next day is Friday.
Q27. If January 1, 2008, was Tuesday, what was January 1, 2010?
Correct Answer:
Thursday
Explanation: 2008 is a leap year. Add 366 + 365 = 731
366+365=731 days (remainder 2). January 1, 2010, was Thursday.
Q28. How many odd days are there in 400 years?
Correct Answer:
0
Explanation: 400 years = 0 odd days as the Gregorian calendar resets every 400 years.
Q29. What day of the week was January 26, 1950 (India's Republic Day)?
Correct Answer:
Friday
Explanation: By counting total odd days or Zeller's Congruence, January 26, 1950, was a Thursday.
Q30. If October 31, 2023, was Tuesday, what day will October 31, 2029, be?
Correct Answer:
Thursday
Explanation: Between 2023 and 2029, there are 6 years with 2 leap years. Add 8 odd days. The day shifts to Thursday.