Question 1
The calendar for the year 2025 is same for
View Answer & Explanation+
Correct AnswerC
Explanation
Accounting for the weekday shift and leap-year structure, 2025 and 2031 have the same calendar.
LOGICAL REASONING
Calendar — UPSC CSAT Previous Year Questions
Practice UPSC CSAT previous year questions from 2011–2026 classified underCalendar. Review the original question, four options, correct answer and explanation for every PYQ.
5Total PYQs
2011–2026Years
2Subtopics
TOPIC-WISE PYQs
Calendar
5 questions • 2011–2026
Question 2
If today is Sunday, then which day is it exactly on 10^10th day?
View Answer & Explanation+
Correct AnswerA
Explanation
Counting the starting Sunday as day 1, the 10^10th day is 10^10−1 days after Sunday. Since 10^10−1 is divisible by 7 with remainder 3, the day is Wednesday.
Question 3
Which date of June 2099 among the following is Sunday?
View Answer & Explanation+
Correct AnswerD
Explanation
Using the calendar calculation for June 2099, 7 June 2099 falls on Sunday.
Question 4
Which day is 10th October, 2027?
View Answer & Explanation+
Correct AnswerA
Explanation
10 October 2021 was Sunday; shifting through the intervening years, including the leap year 2024, gives Sunday for 10 October 2027.
Question 5
If in a particular year 12th January is a Sunday, then which one of the following is correct?
View Answer & Explanation+
Correct AnswerC
Explanation
In a leap year, 12 January to 12 July spans 182 days, exactly 26 weeks, so 12 July is also Sunday.
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