Multiple choice

Find the average of 90, 80, 100.

  1. 80

  2. 85

  3. 90

  4. 95

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Average = (90 + 80 + 100) / 3 = 270 / 3 = 90.

AI explanation

Using the basic average formula, calculate the sum of the numbers and divide by the count of the numbers. The sum of 90, 80, and 100 is 270. Dividing this total by 3 gives an average of 90.