What is the average (arithmetic mean) of all the multiples of ten from 10 to 150 inclusive?	Choose the correct option.
A) 80  B) 95  C) 100  D) 105  E) 110
The multiples of ten from 10 to 150 inclusive would be an evenly spaced set with 15 terms - 10, 20, 30,.......150   So average = (First term + Last Term)/2 = (10 + 150)/2 = 160/2= 
<gadget id="calculator">160/2</gadget>
<output>80</output>
80   Hence, the correct answer is 80.
<result>A</result>
What is the average (arithmetic mean) of all the multiples of ten from 10 to 150 inclusive?