[" 12.The sum of the first "10" terms of the series "9+99],[+999+...," is "]

If the sum of the first n terms of the series

Find the sum of the first 28 terms of the series.

What is sum to the 100 terms of the series 9+99+999+…?

The sum to n terms of the series 9 + 99 + 999 + ……. Is

" If 1,(2)/(3),(4)/(9),..... are in G.P then the sum of first 10 terms of the series is "

Find sum of first 10 terms of geometric series 3,9, 27,……

The sum of the first 2012 terms of a geometric progression is 200. The sum of the first 4024 terms of the same series is 380. Find the sum of the first 6036 terms of the series.

Finish The sum of the first 2012 terms of a geometric progression is 200. The sum of the first 4024 terms of the same series is 380. Find the sum of the first 6036 terms of the series. 500, 442, 542, 344