Question

January 1, 2007 was Monday, what day of the week lies on January 1, 2008 :

• A. Monday
• B. Wednesday
• C. Tuesday
• D. Sunday

Answer 1

Answer:

C. Tuesday

January 1, 2008 was a Tuesday.

To find the day of the week for the same date in the next year, you look at the total number of days in the moving year to calculate the "odd days" (the remainder when dividing the total days by 7).

• Identify the Year Type: The year 2007 is a non-leap year (a standard year) because it is not divisible by 4.

• Count the Days: A standard year contains exactly 365 days.

• Calculate Odd Days: Divide 365 by 7 to find the remainder.
  $\text{365 days} \div 7 = \text{52 weeks and 1 day remainder}$

• Shift the Calendar: A standard year always advances the calendar by 1 odd day.
  (Note: Even though 2008 is a leap year, its extra day on February 29 has not happened yet on January 1, 2008).

• Start day: Monday

• Monday + 1 day = Tuesday