2019 AMC 8 Problems/Problem 7
Problem 7
Shauna takes five tests, each wort a maximum of 
points. Her scores on the first three tests are 
, 
, and 
. In order to average 
for all five tests, what is the lowest score she could earn on one of the other two tests?
Solution 1
Right now, she scored 76, 94, and 87 points, with a total of 257 points. She wants her average to be 81 for her 5 tests so she needs to score 405 points in total. She needs to score a total of (405-257) 148 points in her 2 tests. So the minimum score she can get is when one of her 2 scores is 100. So the least possible score she can get is [A] 48.
See Also
| 2019 AMC 8 (Problems • Answer Key • Resources) | ||
| Preceded by Problem 6 |
Followed by Problem 8 | |
| 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 AJHSME/AMC 8 Problems and Solutions | ||
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