19 The sums of n terms of two AP series are in the ratio of (n + 1) - Maths - Progressions

Question

19 The sums of n terms of two AP series are in the ratio of (n + 1)
: (n + 3), then ratio of their sixth terms is
a 3/7 b 7/3 c 6/7 d 7/6

Brijendra Pal · Accepted Answer

Hi,
Refer the similar link:
https://www meritnation
com/ask-answer/question/the-ratio-of-the-sum-of-n-terms-of-two-ap-s-is-7n-1-4n-27-fi/math/1769719

19. The sums of n terms of two AP series are in the ratio of (n + 1) : (n + 3), then ratio of their sixth terms is a. 3/7 b. 7/3 c. 6/7 d. 7/6