Which term of the G.P. ` 0.004, 0.02, 0.1,… is 12.5 ` ?

Explanation

To find which term of the geometric progression (G.P.) \(0.004, 0.02, 0.1, \ldots\) is equal to \(12.5\), we can follow these steps:

### Step 1: Identify the first term and the common ratio
The first term \(a\) of the G.P. is:
\[ a = 0.004 \]
To find the common ratio \(r\), we can divide the second term by the first term:
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