2002 AMC 12B Problems/Problem 8
- The following problem is from both the 2002 AMC 12B #8 and 2002 AMC 10B #8, so both problems redirect to this page.
Problem
Suppose July of year has five Mondays. Which of the following must occurs five times in the August of year ? (Note: Both months have days.)
Solution
If there are five Mondays, there are only three possibilities for their dates: , , and .
In the first case August starts on a Thursday, and there are five Thursdays, Fridays, and Saturdays in August.
In the second case August starts on a Wednesday, and there are five Wednesdays, Thursdays, and Fridays in August.
In the third case August starts on a Tuesday, and there are five Tuesdays, Wednesdays, and Thursdays in August.
The only day of the week that is guaranteed to appear five times is therefore .
See Also
2002 AMC 10B (Problems • Answer Key • Resources) | ||
Preceded by Problem 7 |
Followed by Problem 9 | |
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
All AMC 10 Problems and Solutions |
2002 AMC 12B (Problems • Answer Key • Resources) | |
Preceded by Problem 7 |
Followed by Problem 9 |
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | |
All AMC 12 Problems and Solutions |
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions.