The average score of 4 tests is 85. What score is needed on the 5th test to raise the average to 87?
A90
B92
C95
D97
Explanation
Total score for 4 tests = 4 * 85 = 340. Required total for 5 tests = 5 * 87 = 435. Score needed = 435 – 340 = 95.
Exam Relevance
- Topic: Averages
- Subtopic: Average Elevation
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