The average (arithmetic mean) of the even integers from 20 to 60 inclusive is how much greater than the average (arithmetic mean) of the even integers from 10 to 140 inclusive? Choose the correct choice from the following answers:  A) 40  B) 15  C) 35  D) 20  E) 25
So, according to A mean of a set of even numbers from 20 to 60 =(20+60)/2= 
<gadget id="calculator">(20+60)/2</gadget>
<output>40</output>
40 and mean of a set of even numbers from 10 to 140=(10+140)/2= 
<gadget id="calculator">(10+140)/2</gadget>
<output>75</output>
75   Difference=75-40= 
<gadget id="calculator">75-40</gadget>
<output>35</output>
35   Answer: 35.
<result>C</result>
The average (arithmetic mean) of the even integers from 20 to 60 inclusive is how much greater than the average (arithmetic mean) of the even integers from 10 to 140 inclusive?