Civil Service Exam Reviewer · Averages · medium
Joy's scores in the first 2 exams are 80, 70. What score is needed in the next exam to have an average of 78?
- 78
- 87
- 75
- 84
Answer
D. 84
Solution
Total needed = 78 × 3 = 234. Current total = 150. Needed = 84.
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