The average (arithmetic mean) of six numbers is 9. If 3 is subtracted from each of four of the numbers, what is the new average? Choose the correct choice from the following answers
A) 1.5	B) 2	C) 7	D) 4	E) 4.5
Sum of 6 numbers = 6*9= 
<gadget id="calculator">6*9</gadget>
<output>54</output>
54   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= 54 - 12= 
<gadget id="calculator">54 - 12</gadget>
<output>42</output>
42   New average= 42/6= 
<gadget id="calculator">42/6</gadget>
<output>7</output>
7   Answer 7
<result>C</result>
The average (arithmetic mean) of six numbers is 9. If 3 is subtracted from each of four of the numbers, what is the new average?