The average of three consecutive odd numbers is 12 more than one third of the first of these numbers. What is the last of the three numbers? Choose one.
A) 15  B) 17  C) 19  D) 21  E) 23
x,x+2,x+4 are three odd numbers   (x+x+2+x+4)/3=12+(x/3)   x=15   last no.=x+4=19   ANSWER:19
<result>C</result>
The average of three consecutive odd numbers is 12 more than one third of the first of these numbers. What is the last of the three numbers?