Question

the ratio of the sum of the n th
terms of two ap is 7 n + 1 is to 4 n+ 27 find the ratio of the eleventh terms​

Answer 1

Answer:

Let a1, a2 and d1, d2 be the first terms and common difference of two A.P.'s.

Suppose and denote the sum of n terms of two A.P.'s.