If it was a Sunday on 30 January 2000, then what was the day of week on 1 March 2004?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Monday
The weekday repeats every 7 days, so only the odd days, the days left over after whole weeks, move it forward. A year of 365 days has 1 odd day and a year of 366 days has 2. Moving from 30 January 2000 (Sunday) one step at a time:
30 January 2000 to 30 January 2001:
366 days, as 29 February 2000 falls in between (2000 is a leap year, being divisible by 400)
2 odd days: Sunday + 2 = Tuesday
To 30 January 2002: 365 days, 1 odd day: Wednesday
To 30 January 2003: 365 days, 1 odd day: Thursday
To 30 January 2004: 365 days, 1 odd day: Friday
30 January 2004 to 1 March 2004:
2 days to 1 February (30 and 31 January)
29 days of February 2004, a leap year
Total \(2+29=31\) days, which is 4 weeks and 3 odd days: Friday + 3 = Monday