Question

determine an a. p. whose third term is 9 and when fifth term is subtracted from the eighth term we get 6

Answer 1

hope it helps you.....

Answer 2

a8-a5=6
a+7d-a-4d=6
3d=6
d=2
a+2d=9
a+2×2=9
a=5
a.p=5,7,9,11