What is the average (arithmetic mean) of all the multiples of ten from 10 to 170 inclusive? Choose the correct choice from the following choices.
A) 90 B) 80 C) 100 D) 105 E) 110
10 and 190 inclusive would mean there are 17 terms.   No need to add up all the terms and further divide by 17 since the terms are evenly spaced in ascending order from 10, 20, 30........170   The middle term is the average which is the tenth term = 80   80 is the answer.
<result>B</result>
What is the average (arithmetic mean) of all the multiples of ten from 10 to 170 inclusive?