On what dates of April, 2001 did Wednesday fall?
20232023
On what dates of April, 2001 did Wednesday fall?
- A.
1st, 8th, 15th, 22nd, 29th
- B.
2nd, 9th, 16th, 23rd, 30th
- C.
3rd, 10th, 17th, 24th
- D.
4th, 11th, 18th, 25th
Attempted by 7 students.
Show answer & explanation
Correct answer: D
Answer: 4th, 11th, 18th, 25th
Explanation:
Find the weekday of 1 January 2001: 1 January 2001 was a Monday.
Count days from 1 January 2001 to 1 April 2001: January 31 + February 28 + March 31 = 90 days. 90 ≡ 6 (mod 7).
Add 6 days to Monday: Monday + 6 days = Sunday. Therefore, 1 April 2001 was a Sunday.
The first Wednesday after Sunday 1 April is 4 April. Adding 7-day increments gives Wednesdays on 4, 11, 18 and 25 April 2001.