What is the average of the first 10 multiples of 3?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 16.5.
The first 10 multiples of 3 are 3, 6, 9, 12, 15, 18, 21, 24, 27, and 30
We know that,
Average = Sum of observations/Number of observations
According to the question,
The sum of these multiples = 3 + 6 + 9 + 12 + 15 + 18 + 21 + 24 + 27 + 30 = 165
Total numbers = 10
The average of these multiples = 165/10 = 16.5