The sum of n terms of two arithmetic progressions are in the ratio `(3n + 8) : (7n + 15)`. Find the ratio of their `12^(t h)`terms.

The sum of n terms of two arithmetic progressions are in the ratio (3n+8):(7n+15)dot Find the ratio of their 12th terms.

The sum of n terms of two arithmetic progressions are in the ratio (3n+8):(7n+15)dot Find the ratio of their 12th terms.

The sums of n terms of two arithmetic progressions are in the ratio 5n + 4 : 9n + 6 . Find the ratio of their 18^(t h) terms.

The sum of n terms of two arithmetic progressions are in the ratio 5n+4: 9n+6. Find the ratio of their 18th terms.

The sum of n terms of two arithmetic progressions are in the ratio 5n+4:9n+6. Find the ratio of their 18th terms.

The sum of n terms of two arithmetic progressions are in the ratio 5n+4:9n+6. Find the ratio of their 18th terms.

The sum of n terms of two arithmetic progressions are in the ratio 5n+4:9n+6. Find the ratio of their 18th terms.

The sums of n terms of two arithmetic progresssions are in the ratio (7n+1):(4n+17). Find the ratio of their nth terms and also common differences.

The sum of n terms of two arithmetic series are in the ratio of (7n + 1): (4n + 27) . Find the ratio of their n^(th) term.

The sum of n terms of two arithmetic progressions are in the ratio 2n+3:6n+5, then the ratio of their 13th terms, is