The sum of n terms of two AP are in the ratio (2n+3):(6n+5),then the ratio of their 13th terms is
(a) 53:155
(b)29:83
(c) 31:89
(d)27:8
Please answer with complete steps and explanation.
The sum of n terms of two AP are in the ratio (2n+3):(6n+5),then the ratio of their 13th terms is
(a) 53:155
(b)29:83
(c) 31:89
(d)27:8
Please answer with complete steps and explanation.