Find the sum of the series : NOTE: The following terms are not G.P. series, but we can convert them to form one.
(i) 8 + 88 + 888 + …. To n terms
(ii) 3 + 33 + 333 + …. To n terms
(iii) 0.7 + 0.77 + 0.777 + …. To n terms