The Total solution for NCERT class 6-12
Let a bethe first term and r be the common ratio of the G.P.
Since there are n termsfrom (n +1)th to (2n)th term,
Sum of terms from(n +1)th to (2n)th term
a n +1 = ar n+ 1 – 1 = arn
Thus, required ratio =
Thus, the ratio of thesum of first n terms of a G.P. to the sum of terms from (n +1)th to (2n)th term is