Find the number of terms in each of the following APs : (i) 7, 13, 19, . . . , 205 (ii) `18 ,\ 15 1/2,\ 13 ,\ dot\ dot\ dot\ ,\ - 47`

Explanation

To find the number of terms in the given arithmetic progressions (APs), we will use the formula for the nth term of an AP, which is given by:

\[ a_n = a + (n - 1) \cdot d \]

where:
- \( a_n \) is the nth term,
- \( a \) is the first term,
- \( d \) is the common difference,
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