If p+q=8z, then which of the following represents the average (arithmetic mean) of p, q, and z, in terms of z? Choose one
A) 2z+1  B) 3z  C) 5z  D) z/3  E) 3z/2
Pick any number like P=12, Q=12 and Z= 3 so that P+Q=8Z, now then the arithmetic mean will be   (12+12+3)/3= 
<gadget id="calculator">  (12+12+3)/3</gadget>
<output>9</output>
9. Now, just look at the answers and put the value of Z there.   (A) 2.3+1=7, no.   (3z) 3.3=9, it can be the answer, lets check us the other options   (C) 5.3=15, no   (D) 3/3=1 no   (E) (3.3)/2=9/2, no   so the answer will be 3z..
<result>B</result>
If p+q=8z, then which of the following represents the average (arithmetic mean) of p, q, and z, in terms of z?