The average (arithmetic mean) of six numbers is 10. If 3 is subtracted from each of four of the numbers, what is the new average?
Pick
A) 1.5 B) 2 C) 3 D) 8 E) 4.5
Sum of 6 numbers = 6*10= 
<gadget id="calculator">6*10</gadget>
<output>60</output>
60   If 3 is subtracted from each of four of the numbers , we subtract  3*4= 
<gadget id="calculator"> 3*4</gadget>
<output>12</output>
12 from the total sum   Sum of 6 number after subtracting 3 from each of four of the numbers= 60 - 12= 
<gadget id="calculator">60 - 12</gadget>
<output>48</output>
48   New average= 48/6= 
<gadget id="calculator">48/6</gadget>
<output>8</output>
8   Answer 8
<result>D</result>
The average (arithmetic mean) of six numbers is 10. If 3 is subtracted from each of four of the numbers, what is the new average?