Question 1
How many days are there in September 2004?
September 2004 has 30 days.
Calendar Problems - Advanced Level: century codes ADVANCED
Quick competitive exam prep session: 20 advanced-level calendar problems questions. Worksheet 27 of 30 - Focus: century codes. Practice leap year calculations, calendar arithmetic, date finding with instant feedback. Great for advanced students needing complex scenarios and multi-step problems practice.
What you'll learn in this worksheet:
- Quickly grasp leap year calculations essential concepts
- Learn proven shortcuts for calendar arithmetic
- Boost your competitive exam prep solving speed
- Spot date finding patterns instantly
- Achieve century codes mastery in minutes
Your progress through Calendar Problems
Worksheet 27 of 30 (90% complete)
Question 2
Which century does the year 2084 belong to?
Year 2084 belongs to the 21th century (years 2001 to 2100)
Question 3
How many Saturdays are there in September 2022?
September 2022 has 4 Saturdays
Question 4
If January 1, 2020 was a Wednesday, what day was January 1, 2048?
January 1, 2048 was a Wednesday. Calendar patterns repeat in cycles due to leap years.
Question 5
What day of the week was 31 December 2100 (the last day of the 21st century)?
31 December 2100 was a Friday. Note: Century years divisible by 400 are leap years, others are not.
Question 6
How many odd days are there from 01-01-2019 to 18-01-2022 (inclusive)? (Note: Odd days = remainder when total days are divided by 7)
Total days = 1114. Odd days = 1114 mod 7 = 1.
Question 7
If someone was born on 16 October 1999 (a Saturday), what day of the week will their birthday be in 2027?
The birthday 16 October 2027 falls on a Saturday.
Question 8
How many odd days are there from 01-01-2025 to 26-08-2029 (inclusive)? (Note: Odd days = remainder when total days are divided by 7)
Total days = 1699. Odd days = 1699 mod 7 = 5.
Question 9
How many odd dates are there in December 2023?
December 2023 has 31 days, of which 16 are odd dates
Question 10
What is the date of the 4th Sunday in August 2030?
The Sundays in August 2030 fall on: 4, 11, 18, 25. The 4th one is 25.
Question 11
How many odd days are there between 1 January 1976 and 1 January 2009 (excluding the start date)?
Years from 1976 to 2008 inclusive. Total days = 12054. Odd days = 12054 mod 7 = 0
Question 12
If today is Sunday, what day will it be 15 days later?
Starting from Sunday (6), after 15 days: (6 + 15) mod 7 = 0 = Monday
Question 13
Is 2055 a leap year?
2055 is not a leap year because it's not divisible by 4
Question 14
How many odd days are there between 1 January 1989 and 1 January 2005 (excluding the start date)?
Years from 1989 to 2004 inclusive. Total days = 5844. Odd days = 5844 mod 7 = 6
Question 15
What is the date of the 4th Wednesday in May 2028?
The Wednesdays in May 2028 fall on: 3, 10, 17, 24, 31. The 4th one is 24.
Question 16
If 4 September 2011 was a Sunday, what day will 4 September 2012 be?
4 September 2012 will be a Tuesday
Question 17
If today is Thursday, what day will it be 16 days later?
Starting from Thursday (3), after 16 days: (3 + 16) mod 7 = 5 = Saturday
Question 18
How many odd days are there between 1 January 1915 and 1 January 1921 (excluding the start date)?
Years from 1915 to 1920 inclusive. Total days = 2192. Odd days = 2192 mod 7 = 1
Question 19
How many weekend days (Saturdays and Sundays combined) are there in the year 2024?
Year 2024 has 52 Saturdays and 52 Sundays, totaling 104 weekend days.
Question 20
In the calendar for January 2027, how many Thursdays are there?
Mon Tue Wed Thu Fri Sat Sun
| | | | 1 | 2 | 3
4 | 5 | 6 | 7 | 8 | 9 | 10
11 | 12 | 13 | 14 | 15 | 16 | 17
18 | 19 | 20 | 21 | 22 | 23 | 24
25 | 26 | 27 | 28 | 29 | 30 | 31
In January 2027, the Thursdays fall on: 7, 14, 21, 28. Total: 4.
🎯 Stay focused! Worksheet 27 targets century codes.