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Calendar Reasoning - Advanced Level: historical dates ADVANCED

Level up your calendar reasoning skills with this challenging mix. 20 advanced-level problems await in Worksheet 24 of 30. Focus area: historical dates. Learn date arithmetic, leap year logic, month patterns through systematic practice. Designed for advanced learners seeking complex scenarios and multi-step problems.

📝 Worksheet 24 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Advanced level

What you'll learn in this worksheet:
Your progress through Calendar Reasoning
Worksheet 24 of 30 (80% complete)

Question 1

Which financial quarter and semester does 26-06-2012 fall in? (Note: Indian fiscal year starts April 1, where April-May-June = Q1/Semester 1, July-Aug-Sep = Q2/Semester 1, Oct-Nov-Dec = Q3/Semester 2, Jan-Feb-Mar = Q4/Semester 2)
For 26-06-2012: Fiscal Year 2012-2013, Quarter 1, Semester 1.
fiscal, quarter, semester

Question 2

In 2015, on which date does Easter Sunday fall?
Easter Sunday in 2015 falls on April 5.
festival, holiday

Question 3

In England, when switching from the Julian to the Gregorian calendar in 1752, September 2 (Julian) was followed directly by which date in the Gregorian calendar?
England switched to the Gregorian calendar after 2 September 1752, skipping 11 days to align with the solar year. Therefore, 3 September became 14 September.
conversion, historical

Question 4

In the calendar for Sep 2022, if the 1st falls on a Thursday, on which weekday will the 15th fall?
15th is 14 days later: (3+14)%7=3, so Thursday.
grid, position

Question 5

How many days did February have in the year 2013?
Year 2013 had 28 days in February.
leap-year, month

Question 6

In 2023, on which date does Easter Sunday fall?
Easter Sunday in 2023 falls on April 9.
festival, holiday

Question 7

A code says: 15/4 = Tuesday. What does 15/5 equal? (Use same year)
Next month same date: calculated day_name(15,5,2025)=Thursday.
pair, month

Question 8

How many odd days are there in 28 years starting from 1841? (Note: Odd days = remainder when total days are divided by 7)
Total days = 21×365 + 7×366 = 10227 days. Odd days = 10227 mod 7 = 0.
odd-days, span

Question 9

In 2038, on which date does Easter Sunday fall?
Easter Sunday in 2038 falls on April 25.
festival, holiday

Question 10

If 17-03-2018 is a Saturday, what day is 17-03-2019?
365 days later: day shifts by 1 days. Saturday + 1 days = Sunday.
chain, multi-step

Question 11

If yesterday was not Friday, which day CANNOT be today?
If today were Saturday, then yesterday would be Friday, which contradicts the condition.
conditional, logic

Question 12

If 1 January 2022 was a Saturday, what day was 1 July 2022?
Calculated via Zeller's congruence: 1/7/2022 falls on Friday.
date, sequence

Question 13

In the calendar for May 2021, if the 1st falls on a Saturday, on which weekday will the 15th fall?
15th is 14 days later: (5+14)%7=5, so Saturday.
grid, position

Question 14

How many days did February have in the year 2021?
Year 2021 had 28 days in February.
leap-year, month

Question 15

In England, when switching from the Julian to the Gregorian calendar in 1752, September 2 (Julian) was followed directly by which date in the Gregorian calendar?
England switched to the Gregorian calendar after 2 September 1752, skipping 11 days to align with the solar year. Therefore, 3 September became 14 September.
conversion, historical

Question 16

If the day before yesterday was not Thursday, which day CANNOT be today?
If today were Saturday, then day before yesterday would be Thursday, which contradicts the condition.
conditional, logic

Question 17

How many days did February have in the year 2015?
Year 2015 had 28 days in February.
leap-year, month

Question 18

How many days did February have in the year 2010?
Year 2010 had 28 days in February.
leap-year, month

Question 19

If 19-10-2018 is a Friday, what day is 18-11-2018?
30 days later: day shifts by 2 days. Friday + 2 days = Sunday.
chain, multi-step

Question 20

If 07-04-2012 is a Saturday, what day is 07-04-2013?
365 days later: day shifts by 1 days. Saturday + 1 days = Sunday.
chain, multi-step
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