A person was born on 27 May 2009. What day of the week will be on his 23rd birthday?
Show answer & explanation
Correct answer: B
Explanation
23rd Birthday
2009 + 23 = 2032
Date = May 27, 2032
Count Leap Years (2009 → 2032)
Leap Years: 2012, 2016, 2020, 2024, 2028, 2032 ⇒ 6 Leap Years
Total Odd Days:
Ordinary Years = 23 − 6 = 17
Odd Days = 17 × 1 + 6 × 2 = 17 + 12 = 29
29 / 7 = 1 Odd Day
Day on May 27, 2009
The day was Wednesday
Now, move 1 day forward:
Wednesday → Thursday
Final Answer: Thursday