In any non-leap year, which pair of months begins on the exact same day of the week?
Answer and explanation
Correct answer: C. January and October
- Step 1: Two months start on the same day if the total number of elapsed days between their starts is a multiple of 7.
- Step 2: In a non-leap year (28 days in Feb), the total days from January 1 to October 1 is .
- Step 3: (0 odd days), so January and October start on the exact same weekday.
Answer
January and October.
Why not the others: January and March differ by 3 odd days; February and May differ by 1 odd day; and April and September differ by 2 odd days.
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