If the ratio of t

Let the 'a' and 'A' be the first term of two AP's

And 'd' and 'D' be the common difference of the AP with first term as 'a' and 'A' respectively.

Also, let their nth term be a_n and A_n and sum of nth terms be s_n and S_n.

We know, that sum of first n terms of an an AP is

Where, a is first term and d is common difference

Given,

Put n = 2(9) - 1 = 17

[we choose, n = 2m - 1 for calculating ratio of mth terms]

Hence, ratio of 9^th terms is 24:19