For the positive integers x, x + 2, x + 4, x + 7, and x + 22, the mean is how much greater than the median?
Choose the correct choice from the following choices:
A) 0  B) 1  C) 2  D) 3  E) 7
Mean = (x + x+2 + x+4 + x+7 + x+22)/5   =(5x+35)/5   =x+7   Median = x+4   Thus Mean - Median = x+7 - (x+4)   =3   Answer +7 - ( +4)= 
<gadget id="calculator">+7 - ( +4)</gadget>
<output>3</output>
3   Answer= 3
<result>D</result>
For the positive integers x, x + 2, x + 4, x + 7, and x + 22, the mean is how much greater than the median?