Difference between revisions of "2000 AMC 12 Problems/Problem 9"
(New page: == Problem == {{empty}} == Solution == {{solution}} == See also == {{AMC12 box|year=2000|num-b=8|num-a=10}} Category:Introductory Algebra Problems) |
(→Problem) |
||
| Line 1: | Line 1: | ||
== Problem == | == Problem == | ||
| − | {{ | + | Mrs. Walter gave an exam in a mathematics class of five students. She entered the scores in random order into a spreadsheet, which recalculated the class average after each score was entered. Mrs. Walter noticed that after each score was entered, the average was always an integer. The scores (listed in ascending order) were 71,76,80,82, and 91. What was the last score Mrs. Walters entered? |
| + | |||
| + | <math>\text{(A)} \ 71 \qquad \text{(B)} \ 76 \qquad \text{(C)} \ 80 \qquad \text{(D)} \ 82 \qquad \text{(E)} \ 91</math> | ||
== Solution == | == Solution == | ||
Revision as of 13:57, 3 January 2008
Problem
Mrs. Walter gave an exam in a mathematics class of five students. She entered the scores in random order into a spreadsheet, which recalculated the class average after each score was entered. Mrs. Walter noticed that after each score was entered, the average was always an integer. The scores (listed in ascending order) were 71,76,80,82, and 91. What was the last score Mrs. Walters entered?
Solution
This problem needs a solution. If you have a solution for it, please help us out by adding it.
See also
| 2000 AMC 12 (Problems • Answer Key • Resources) | |
| Preceded by Problem 8 |
Followed by Problem 10 |
| 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 | |
