If the ratio of the sums of first n terms of is 7 n + 1: 4n + 27 find the ratio of the ninth terms

If the ratio of the sums of first n terms of is 7 n + 1: 4n + 27 find

1.	If the ratio of the sums of first n terms of is 7 n + 1: 4n + 27 find the ratio of the ninth terms
Answer» 24:19 use n=2m-1where m is the required term 24:19