If the ratio of sum of n terms in two A.P is 2n : n + 1, then the ratio of 8th terms is …………….
If the ratio of sum of n terms in two A.P is 2n : n + 1, then the ratio of 8th terms is …………….
A) 8 : 13
B) 15 : 8
C) 5 : 17
D) 8 : 17
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