lets say that the average (arithmetic mean) of seven numbers is 12.2
If the sum of four of these numbers is 42.8, what is the average of the other 3 numbers?	Pick:
A) (a) 12.4
B) (b) 14.2
C) (c) 16.8
D) (d) 18.6
E) (e) 19.2
We're told that the average of 7 numbers is 12.2   (Sum of numbers)/7 = 12.2   Sum of numbers = (12.2)(7) = 85.4   Next, we're told that the sum of 4 (of the 7) numbers is 42.8   From this information, we can calculate the sum of the OTHER 3 numbers:   85.4 - 42.8= 
<gadget id="calculator">85.4 - 42.8</gadget>
<output>42.6</output>
42.6   The question asks for the AVERAGE of the OTHER 3 numbers....   42.6/3= 
<gadget id="calculator">42.6/3</gadget>
<output>14.2</output>
14.2   (b) 14.2
<result>B</result>
lets say that the average (arithmetic mean) of seven numbers is 12.2
If the sum of four of these numbers is 42.8, what is the average of the other 3 numbers?