Civil Service Exam Reviewer · Averages · easy

What is the average of all whole numbers from 29 to 54, inclusive?

1. 42
2. 41.5
3. 1,079
4. 27

Answer

B. 41.5

Solution

For consecutive numbers, the average is (first + last)/2 = (29 + 54)/2 = 41.5.

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