Find the `20^(t h)`and `n^(t h)`terms of the G.P. `5/2`,`5/4`,`5/8,dotdotdot`

Explanation

To find the 20th and nth terms of the geometric progression (G.P.) given by the series \( \frac{5}{2}, \frac{5}{4}, \frac{5}{8}, \ldots \), we can follow these steps:

### Step 1: Identify the first term (a) and the common ratio (r)
The first term of the G.P. is:
\[ a = \frac{5}{2} \]

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