if 3rd ter, and 9th term is 8 in a.p,then find the 11th term
Options:  A) 61  B) 62  C) 63  D) 64  E) 65
a3=a1+(3-1)d   8=a1+2d.....(1)equ.   a9=a1+(9-1)d   8=a1+8d....(2)equ.   solve (1) and (2) then a1=4 and d=6.   a11=a1+(11-1)d   a11=4+10*6   a11=64.   ANSWER:64
<result>D</result>
if 3rd ter, and 9th term is 8 in a.p,then find the 11th term