Multiple choice general knowledge math & puzzles

What is the arithmetic mean of - 8, (2 - [- 8]), 3, 7 and - 1?

    • 1.8
    • 2.2

  3. 1.8

  4. 2.2
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D Correct answer
Explanation

The numbers are -8, (2 - [-8]) = 10, 3, 7, and -1. The sum is -8 + 10 + 3 + 7 - 1 = 11. The mean is 11 divided by 5, which equals 2.2.

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