Multiple choice

Find the average of $80, 90, 100, 110, 120, 130$.

  1. $100$
  2. $105$
  3. $110$
  4. $115$
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B Correct answer
Explanation

Average = (80 + 90 + 100 + 110 + 120 + 130) / 6 = 630 / 6 = 105.

AI explanation

To find the arithmetic mean, add all the numbers together: 80 plus 90 plus 100 plus 110 plus 120 plus 130 equals 630. Divide this sum by the total count of numbers (6). The calculation 630 divided by 6 gives the result 105.

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