Mathematics/General Ability MCQs
Topic Notes: Mathematics/General Ability
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
81
Which day of the week was 6/9/2025?
Answer:
Saturday
Step-by-step solution: 1. Use Zeller's congruence to compute the day of the week. 2. After substituting the values, remainder corresponds to Saturday. 3. Therefore, 6/9/2025 fell on a Saturday.
82
Which day of the week was 14/2/2026?
Answer:
Saturday
Step-by-step solution: 1. Use Zeller's congruence to compute the day of the week. 2. After substituting the values, remainder corresponds to Saturday. 3. Therefore, 14/2/2026 fell on a Saturday.
83
Which day of the week was 17/7/2022?
Answer:
Sunday
Step-by-step solution: 1. Use Zeller's congruence to compute the day of the week. 2. After substituting the values, remainder corresponds to Sunday. 3. Therefore, 17/7/2022 fell on a Sunday.
84
How many odd days are generated by exactly 5 ordinary years?
Answer:
5
Every single ordinary year contains precisely 1 odd day. Therefore, 5 ordinary years will naturally generate 5 × 1 = 5 odd days.
85
If the 15th of August is a Wednesday, what day of the week will the 1st of August be?
Answer:
Wednesday
The difference between the 15th and the 1st is 14 days. Since 14 is a perfect multiple of 7, there are 0 odd days. Moving backwards 14 days leaves the weekday unchanged. Thus, it remains Wednesday.
86
Which of the following months does NOT have 30 days?
Answer:
July
Following the standard Gregorian calendar lengths, April, June, September, and November all have exactly 30 days. July, however, has 31 days.
87
If 10th March 2003 is a Friday, what day of the week is 10th March 2004?
Answer:
Sunday
2004 is a leap year, and moving from March 2003 to March 2004 crosses February 29th, 2004. This creates a 366-day interval, which generates exactly 2 odd days. Friday + 2 days = Sunday.
88
How many days are there from 1st April 2021 to 15th June 2021 (inclusive of both)?
Answer:
76
April has 30 days. May has 31 days. June has 15 days up to the given date. Total days = 30 + 31 + 15 = 76 days.
89
The total number of odd days in the months of July and August combined is:
Answer:
6
Both July and August have 31 days. The number of odd days in a 31-day month is 3. Combining both months, the total number of odd days is 3 + 3 = 6.
90
If 1st January 1900 was a Monday, what day was 31st December 1900?
Answer:
Monday
1900 is an ordinary year because, being a century year, it is not perfectly divisible by 400. In any ordinary year, the first day and the last day of the year fall on the exact same weekday. Thus, it was Monday.