Civil Service Exam Reviewer · Averages · medium

Ivan's scores in the first 3 exams are 91, 96, 95. What score is needed in the next exam to have an average of 90?

1. 78
2. 90
3. 82
4. 94

Answer

A. 78

Solution

Total needed = 90 × 4 = 360. Current total = 282. Needed = 78.

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