What day of the week was 15 August 1947?
Answer (Detailed Solution Below)View answer ▾Hide ▴
Answer: Option B — Friday
Detailed Solution
Odd days up to 1600 = 0, 1601–1900 = 1, 1901–1946 (46 years: 11 leap + 35 ordinary) = 11 × 2 + 35 = 57 → 1 odd day. Total so far 2.
1947 up to 15 Aug: Jan 31 (3), Feb 28 (0), Mar 31 (3), Apr 30 (2), May 31 (3), Jun 30 (2), Jul 31 (3), Aug 15 (1) = 17 → 3 odd days.
Total odd days = 2 + 3 = 5, and 5 odd days means Friday (0 = Sunday).
✓ Check
India's first Independence Day is widely recorded as Friday, 15 August 1947.⚠ Common trap
(A) Thursday — counts 1600 years as 1 odd day or forgets that 1900 is not a leap year.Quick tip
Odd days: 100 yrs = 5, 200 = 3, 300 = 1, 400 = 0; ordinary yr = 1, leap = 2
💬 Discussions on this question
Ask a doubt ›Still stuck on this question? Ask our faculty and fellow students — answers appear here.
Ask a doubtMore Calendar & Dates Questions
View all ›- Q1.If the day after tomorrow is a Sunday, what day is it today?
- Q2.If the third day of a month falls on Friday, what day will be on the fourth day after the twenty-first of the month?
- Q3.Which two months in a year have the same calendar?
- Q4.How long would it take you to count 1 billion orally if you could count 200 every minute and were given a day off every four years? Assume that you start counting on 1 January 2001.
- Q5.If 1st January 2000 falls on Monday, which will be the day of 26th January 2000?
More Logical Reasoning Questions
- Q1.Six persons A, B, C, D, E, and F are sitting in a row facing north. B sits third to the left of F. A sits to the immediate right of B. D sits second to the right of F. E sits to the immediate right of A. Who sits at the extreme right end?Linear Arrangement
- Q2.Five friends P, Q, R, S, and T are standing in a row. P is to the left of Q but to the right of T. R is to the right of Q. S is between Q and R. Who is standing in the middle?Linear Arrangement
- Q3.Eight people 1 through 8 sit in a row. 3 sits exactly midway between 1 and 5. 5 sits to the immediate left of 7. 2 sits third to the right of 8. 6 sits to the immediate right of 2. 4 sits between 6 and 7. Who sits second from the left?Linear Arrangement
- Q4.A, B, C, D, and E are five houses in a row from left to right. C is to the right of B and to the left of E. A is to the left of B. D is to the right of E. Which house is in the middle?Linear Arrangement
- Q5.Seven students sit in a row. Priya is second from the right. Raj is third to the left of Priya. Meena is immediately to the right of Raj. Sam is between Meena and Priya. Two students sit to the left of Raj. Who sits at the extreme left?Linear Arrangement
Calendar & Dates — Preparation
This question tests your understanding of Calendar & Dates, a key topic in the Logical Reasoning section. The detailed solution above uses a step-by-step approach to show the reasoning, and where available, a shortcut that helps you solve similar questions in under 90 seconds during the actual exam.
Calendar questions ask you to find the day of the week for a given date, or how dates and days shift between years. The core idea is odd days: the number of days left over after complete weeks. An ordinary year has 1 odd day and a leap year has 2. A century year is a leap year only if it is divisible by 400, so 2000 was a leap year but 1900 was not. Exam questions test finding the day for a given date, finding when a calendar will repeat, and working forward or backward from a known day. Month codes make the day-for-date method quick once memorised. Remember that the day on 1 January moves forward by one day after an ordinary year and by two days after a leap year. Practise the calendar questions below, each with a step-by-step solution using the odd days method.