The arithmetic mean of the 7 consecutive integers starting with 's' is 'a'. What is the arithmetic mean of 9 consecutive integers that start with s + 3?	Options.
A) 2 + s + a  B) 22 + a  C) 2s  D) 2a + 2  E) 3 + a
(7s+21)/7=s+3=a   (9s+54)/9=s+6=3+a   3 + a
<result>E</result>
The arithmetic mean of the 7 consecutive integers starting with 's' is 'a'. What is the arithmetic mean of 9 consecutive integers that start with s + 3?